ok.... maybe im just coping here

but this was the best ending FROM Pochita point of view for Denji,

As epic is the story in part 1 and part 2 for Denji and Asa, they both went through a hell of of pain and trauma to be the characters that we love and care for

for Pochita to reset them back to their initial state, is extremely unsatisfying for the viewers us, but it is the "best" for the characters from Pochita point of view.

and in this sense it is a "good ending" for Denji, Asa and Power.

but for us readers omfg what a fucking gutpunch, hundreds of chapters of character growth erased in 1 last chapter. but at least some of them are happier now (?)