I don't see what's weird about it. All of the Final Fantasy games coming to Game Pass were already released on Xbox One. Most fans already paid for these games. The Kingdom Hearts games on the other hand are brand new games on the Xbox platform once they release.
They probably don't expect they'll sell much so they'd rather take Microsoft's upfront payment, and if we know anything about Microsoft it's that they usually overpay.
Also I edited the thread title for clarity, when I first made it I mistakenly thought Kingdom Hearts was also coming to Gamepass, now it doesn't make much sense to have them both in the same thread.Last edited by Ryuu96 - on 17 November 2019