Okay, I saw it again. And I think I finally figured out Rogue One's pacing problem.
There are 3 main plot points of Jyn's story. Find Saw Gerera (and thus the hologram of her father), prove their existence to the rebel alliance, steal the plans.
The problem is in the second point. The movie first provides proof in the form of Galen's hologram, but that's lost in the fire of the death star. The crew then tries to retrieve Galen himself, but he dies. Finally, they go to the Rebel Alliance with what they have, and they don't move on it, which leads them to going "screw it" and attacking Scariff anyway.
The entire middle third/half of the movie is spent trying to authenticate a plot point that is tossed aside in the end anyway. As a result, in terms of pure plot, it feels like a lot of wasted time, as they keep trying to solve a problem in which 2 separate solutions have slipped through their fingers. This isn't an inherently unworkable problem, but they have to fill the space in which they do all this with meaningful character moments. Otherwise, the characters are just spinning their wheels in place.
And we indeed get a few for Jyn and Cassian, but not for the rest of the crew, which really needed those moments to be fleshed out. Where the film could have introduced and developed character arcs for these minor characters, they instead just focus on a plot problem that will ultimately be made irrelevant.
Now, the other big problem is Jyn. I said before that her motivation for doing what she did never felt like it was her own. This time, I paid attention to why she was doing what she was doing. She starts the film a prisoner under a false name, before being freed by the rebel alliance. They basically threaten her and give her an ultimatum: Help establish contact with Saw Gerera or we tell the Empire you're really Jyn Urso. Her motivation up until she actually meets Saw Gerera is pure self preservation and she openly states she has complete apathy over the galactic war. She is more or less completely self serving up to here.
Then she sees her father's message of love and affection for her, which breaks her down emotionally somewhat. At this point, Galen has literally defined the flaw in the death star as 'his revenge' and it is this that Jyn sticks to for the rest of the film. If the film hadn't been insistent on that terminology, I feel I would have less problem with Jyn's character arc, but even at the very end, she defines the plan to Krennic as her father's revenge. Not her own. I mean, given her contribution and sacrifice to the rebels getting the plans, this could have easily become 'their' revenge, but Jyn clearly states that she is merely acting out the will of her father.
So, I ask what I asked before: What does Jyn want for herself? I tried to pay attention to this aspect, but there's just very little to go on. And part of it is because her relationship with her dad, if sweet, isn't terribly compelling. He loves her, and she loves him, and that's pretty much all there is to say about it. Her father just keeps making saccharine speeches to his beloved 'star dust' while Jyn looks on longingly at the father who was taken away from her. And that's not inherently bad, but he didn't seem to have any actual desires or expectations of her, nor she from him, which could have added some layers to their loving relationship. Her acting out the will of her father could have worked if the relationship she had with him was interesting, but all we get is bland platitudes of fatherly love.
So we have a character who wants nothing for herself and takes on the burden of her father's will while having a pretty bland relationship with said father. Like I said, the final confrontation robbed her of any catharsis she could have had for herself by having Krennic's final appearance resolved by someone else randomly shooting him from where he didn't see it coming (like in the beginning of the movie, funny enough), when it should have been Jyn who resolved that herself. Krennic is the man who is the epicenter of her ruined life.
One counter argument to that was that Jyn's character arc wasn't about her getting revenge, so it wasn't needed. I disagree. After Cassian shoots Krennic, but before they leave, they have one final shot of Jyn looking at Krennic's body, making a rush to it out of pure rage, but Cassian grabs her and pulls her back, because the place was about to go down. And unfortunately, that's unintentionally symbolic of what the problem of Jyn is. This was a small slip of her trying to act on her own motivations: She hates the fucking bastard and wants to give his corpse a kick for good measure. The context of the base exploding means it's a good idea to leave, but after an entire film of her working on behalf of others, it's sad to see that the moment she tries to do something for herself, she has to be pulled back. The film only has her carry the burdens of others. First the Rebel Alliance, then her father. Because without them, she has no aspirations of her own and just wants to live one moment to the next, without a care of whose flag soars in the galactic sky. And this isn't an attitude that she actually drops either.
Because even after her dad dies to the bombing run, Jyn is still disillusioned and unsympathetic to the rebel alliance. After all, it was rebel bombers that actually killed her father and she points this out in an air of weary cynicism. And I feel this is notable, because Cassian never really justifies it to her, but she is still willing to work with the rebels even after that without any kind of grudge, like she understood that this was just the way the rebels operated, with indifference to the small people getting hurt like her, and there was no reason to take it personally, even though it was her fucking father. The one and only time she tries to appeal to the justice and goodness within the rebel alliance, it fails except for the select few that would join her later on.
So, that's the key thing here. This would be a completely different argument if Jyn, after a life of apathy, personally arrives at the conclusion that the Rebel Alliance's cause is worth fighting for, like her father and Saw Gerrera did. But there's little to indicate that that is the case. At best, she made some friends she trusts along the way. But her purpose of being at Scariff, her raison d'etre, is still exclusively to fulfill someone else's agenda...an agenda she doesn't seem to really believe it. She just feels obligated to fulfill it. She dies doing the work of someone else, who she loves, but doesn't seem to believe in.
It's still not a bad film. In fact, I think I like it more than I did the first time around. But I feel that Rey, if you'll pardon the pun, completely outshines her greatly as a character by having self motivating agency and thus is much less of an interesting character.