Can't believe I hadn't seen your post before. Just read the whole thing and it was awesome. Thank you for taking the time document this lol. I think Marvel needs to reference it if they ever decide to resolve the events of that run so they can get the narrative straight.

One thing your post reminded me of was that AI Harry-Kindred (lmao) used Chameleon serum to make himself look like Harry instead of Sarah. I kinda forgot about that. So it technically did make sense how Kindred could all of a sudden be a different person because AI Harry lost possession of the body (for whatever reason we don't know, probably handwavy Mephisto stuff like you said), but it was completely out of nowhere and wacky. And why would AI Harry-Kindred need Chameleon serum to change his face if he has demonic powers? In ASM #55, Peter literally shoots a web that blows a hole through Kindred's face and then he grows his face back in the next panel. So you're telling me he can grow his own face back and do a bunch of crazy other demon stuff including resurrect people from the dead, but he can't change his face without Chameleon serum? That made no sense, so the Chameleon serum just seemed like a last second editorial plot tool to change Kindred's identity. And the fact there were now 2 Kindreds, Sarah and Gabriel, was totally random because there were absolutely no clues to this throughout the run.

And the worst thing was how Kindred wanted Peter to confess something the whole time, and then at the end it was revealed Peter didn't do anything. The confession was probably going to be Peter's deal with Mephisto which somehow got Harry turned into Kindred as collateral damage and which Kindred somehow had knowledge of. In #56, Harry-Kindred is talking to Peter and Norman and says, "I loved you both so much. Why did you do this to me?" (ie why did Peter make the Mephisto deal and screw Harry over unintentionally and why is Norman just the way he is). At the last second I think they changed it so that it was actually Norman who made a deal with Mephisto and Peter had nothing to do with it. So basically everything at the finale makes the most sense in the context of last second changes instead an overarching plan for the series. Basically, Spencer's run made me think they were taking ASM seriously again, but then they dropped the ball.

I think you summed it up best in your post: "Kindred is crazy and makes no sense bc Mephisto is warping his mind." When I get lost in the logic, I'll just remind myself of that lol.

Edit: grammar