Well, this is indeed a curious trend...
That is not to say that both companies haven't had their blunders, because they did.
However, if this is indeed one company who has considerably dropped the ball on this has to be SquareEnix, they have yet to develop anything remotely engaging.
I should know, I bought Project Sylpheed, one of Squenix's first 360 games and I got so very dissapointed. I also got Infinite Undiscovery, which was so bad, I literally quit the game in the first 5 hours of gameplay and sold it online.
From what I read, including accounts from people I know that are great Final Fantasy fans, one of them, a close friend of mine who's played every single FF since the first one, I wouldn't touch it with a 10 foot pole.
They've even run the Dragon Quest series into the ground with a few DS titles.
And how's buying Eidos working out for them?
However, nobody starts online riots over any of this...
But if Sega does something... well you know what happens...