Finn is a character who sounds better on paper than he looks on the silver screen. On paper he's an experienced storm trooper trained from birth for the purpose of being a soldier, and yet when you see him on screen - he's a fearful spaz who Mr. Magoo's his way through conflicts.
Not precisely. A big theme of this movie is ability via state of mind.
Finn is in a complex situation. Indoctrinated to be a one-mind killing entity for the new order. After the atrocities on Jakku his mental capacity is shaken up, he starts the movie with an inner conflict about who he is. His training as a solider, is connected in such a way that is synonymous with how he was raised. After escaping, he is focused mainly on trying to escape the new order, he is crippled by fear. Rey and her capture, makes him reevaluate his goals, he is in a period of rediscovery but ultimately a great uncertainty still lies within him, because of how he was raised.
This theme can be applied to Ren and Rey. On Jakku we see ren display force abilities that surpass what we have seen dark side users to display in the past, it highlights potential of power, but throughout we see Ren in emotional distress, incapable of emitting a certain level of consistency. This is what causes his powers to drop, and allowing Rey to take the upper hand during 3 moments. When she blocked Ren from reading her mind, control of luke's lightsaber, and the very end.
Rey is portrayed from a position of certainty, she knows what her ideals are, for most of the movie she is solid in her morals. Her idealisation of the resistance, the jedi and luke skywalker, her faith is unwavering. Not only that her level of commitment is displayed through her initial story of waiting on jakku for her parents, unwilling to leave her post waiting for her return. Even when she was forced to leave, knowing that going back to jakku is certain death, all she thinks about is going back in hopes her parents return. Because of this, she is portrayed as a very capable and talented individual.
She has two moments of weakness, when she is told her parents won't return after her vision, this is mainly because it shakes the foundation for what she perceives is her reason for existing, but for me is the pivotal point in which she finds a greater realisation about herself to proceed forward. The second is Kylo ren, people complained that she owned him, she didnt win, and in the final fight she spent most of her time running away. From what I can see, this generation of force users are more talented than the last. The force allowed Rey to escape, they didn't allow her to win. Yes she displayed strong powers very quickly. But thats what makes her talented, we can't compare her to ren yet. Because we have no time reference. First of all, keep in mind, my belief is that the state of mind affects performance, ren was weakened, and rey gained a temporary moment of clarity allowing her to escape. Not only that, what do we know so far of Ren? He has had training yes, from luke and snooke, but for how long? We know his training is not complete. In relative terms, he is also a noob with big potential, just not as big a noob as rey. But both are pretty talented. I guess thats what im trying to say.
Also
Rewatching TPM now, i dont understand the hate. Ok Racial insensitivity with jar jar binks is bothering me, and I dislike the character overall. But the movie is good. Maybe not as good as the OT, but it has a lot going for it. Personally I love the design of the trade federation and the droids, and Qui gon, using jedi mind tricks on everyone, which i never noticed before is pretty cool. The story isn't that bad either. And tbh i dont mind the midichlorian debate. It gives a good bridge between religion and science in that regard. The force is a "faith" yet uses lightsabers which are scientifically advanced as their primary weapon. This creates a bridge, which I have no trouble with, it's not even that prevalent. Just a passing comment.