I really disagree with that. I've had a lot of issues with Japanese writing andWell it's hard to definitively say what the authorities are up to without details (he could be on the run) so I wouldn't jump to conclusions.
But as for the PTs accepting him for being a literal serial killer... It's not the best writing no, nor is it remotely grounded, but it's satisfying to work with a former enemy for a common goal, especially when the original game killed him off in such a cheap and satisfying way. At the very least, Joker has a proper connection with him now.
trying to redeem clearly to far gone villains. To have akechi just show all his true colors and die there was super satisfying
Its honestly the main reason I liked Akechi's character in vanilla. He had subverted every expectation I have for Japanese writing.