Stop complaining like a little bitch and do not judge a series by its ending. Read up about the last Interview Kubo did, it might give you some Info you did not know about.
I'm not judging by ending, Bleach was in slow agony since Fullbringer arc and honestly, even with all my love for this series I'm not so suprised that it ended that quickly. The ending was a disappointment for me, because I remember Bleach at its best and really wanted it to end as such. Even neverending hiatus would be better. Sorry if I sound to you like a bitch, rant is over.
It ended with an echo on how it started and with a look to the new generation of the powerful and courageoud. That sort of framing is common...and it brings us full round. I think it's a nice ending, actually. I do feel as if the Yhwach thing was not paced properly and felt super-rushed by the end, but the last chapter makes for a lovely.."the story goes on because the families go on..." kind of finale.
After 10 years of being a serious fan, that's what I get?
I feel betrayed for always believing that after Fullbring arc the story wouldn't go worse. As I can see now, it went. But I still believed and then got my hopes up at how this Quincy's arc started, exciting and somewhat brutal like good ol' Bleach. Still, chapter after chapter that excitment somehow went puff! and then this rushed and disappointing ending happened. This is some huge Fuck you I got here. Thanks, Kubo.