Lol Kingdom Hearts just lost most people with it's insane story, so the same rule about continuity no longer applied, and no-one played it for the story.

I remember my brother playing KH3 and complaining that it made no sense. I had to point out that he'd missed 2 handheld spinoffs and tech demo prequel to the game. He didn't even know any of them existed. He just thought it went KH1->KH2->KH3