Kingdom hearts is a Disney-owned franchise. I always felt the inclusion of FF characters was a bit dumb, personally.
Yeah, certainly doesn't help that they're spreading its incoherent clusterfuck of a story across many different side games.
Remember when side games where JUST side games? Pepperidge Farm remembers. (sorry that was cringe) Yeah definitely, i'm not buying another handheld for a seemingly unrelated game to keep me away from confusion in the next installment.