If Gimple feels that the scene was not about the character who dies, it was about Rick, and thats why he feels it isn't a cliffhanger, then here's my question for Mr. Gimple - why didn't you give us a reaction shot of Rick as the beating occurred? Heck, why didn't the entire beating occur with us focused squarely on Rick & his reaction to it? Oh thats right, cause you're selling a cliffhanger.
Here's what Gimple doesn't realize about that scene, or at least he won't admit to it least his AMC overlords who love creating moments to sell premium ad slots won't allow him to admit to - The Lucille scene, both in the comics & ESPECIALLY on the show, is mostly about the audience. Its about breaking the audience's sense of safety and comfort. Thats why its so visceral. Thats why it was done to a character who was considered untouchable by many.
An arc like Alexandria was always going to create a sense of security for the characters & for the audience. This is actually a huge change of pace for the show TWD & the comic TWD, which at that point had enjoyed regularly offing cast members, typically at the end of a long build-up. But Alexandria meant security, comfort, safety. High walls that allowed the cast that had made it up to that point to breathe. To see them in situations they are very much no longer accustomed to. In the comic, we see the cast wrestle with the idea that life could somehow return to some form of pre-breakout normalcy, with dinner parties & potlucks and the like. The show emulated this to an extent, although this season replaced the sense of security we had within Alexandria for our cast members, with the sense of security the 'soldiers' of the show represented for the town. They were untouchable, they came out of dire circumstances unscathed while other Alexandrians were not so lucky. That feed right into Rick's hubris. That he & his crew were prepared for absolutely anything.
Thats why the Negan scene is an absolute master-class moment. It's a reality check, and both the characters & the audience get to feel it at the same time. You think the scene would've had the same amount of impact had they just cut to black & not shown you who got it in the comic? No. They showed us every visceral, obscene, gory detail of the execution. It was meant to rattle the audience. Not showing you this moment, and cutting it in half, removes all of the tension & build-up. It's gone. When they do show us the death scene, it won't even matter anymore.
Personally, this is it for me & the show. It's more than just because they pulled a cliffhanger, even though a cliffhanger is already a pretty big insult to me as an audience member as is. It's because, for me, the purposeful sullying of this moment represents them choosing the potential to grow the popularity & social presence, and in effect the value of their ad slots, at the cost of telling the best story they possibly can. TWD is a show that has always had to wrestle with its budget to a degree. Fine, I get that - but we're talking about the most popular show on TV right now. The carrot for next season isn't necessary - people were going to tune in by the boat load regardless.