On one side, nintendo have exclusive rigths over FF is more of a rumor, never officially confirmed. Besides, about censorship, actually, it didn't needed before because before nintendo, they didn't really made sexual outfit for the protagonits. Its something that only started to appear on the franchise in the ff2 remake, i think, that was exclusive for wii.
On the other side, being exclusive to nitenndo platafform actually hurt the chances of the franchises to expanding. C'mom guys, its not like nintendo wiiu owners are getting survival horror games in droves (like zombiu proved), except for the letter(lol). Resident evil, dead space, all horror franchises that strugled to sell on nintendo console when were exclusives to it. Maybe there is a market there, but not as big as the ones in the other platafforms.
In the end, i'm not really sure of the point that op is trying to make. Like, tecmo is still making games for it, and at each iteration, the game gos out of japan more and more. You are getting more games. It really that much important if its in the top of sales chart for you?
"Hardware design isn’t about making the most powerful thing you can.
Today most hardware design is left to other companies, but when you make hardware without taking into account the needs of the eventual software developers, you end up with bloated hardware full of pointless excess. From the outset one must consider design from both a hardware and software perspective."
Gunpei Yoko
