I'm fine with it all. Even Xion. Yes, I like Xion, and I like the idea of what she is. Piss off.
Anywho, mainly the reason I don't mind is because of what Nomura has stated since the very beginning. KINGDOM HEARTS IS SORA'S STORY. Yeah, maybe a LITTLE variation would be nice, but every single part of the story somehow has to link to Sora. So no, the amount of "clones" doesn't bother me.
And for anybody who it does bother, quit your whining, because you'll be getting a new series with someone else as the focus, so there.
And there's nothing wrong with that. Just admit Kingdom Hearts so far has gone to the crapper and could be a lot better if Nomura had less of a role.