People thought Alisha would be the heroine of Zestiria or the female counterpart in that Tales game (according to previews etc.). Game released and suddenly Alisha is sidelined after the begining of the game is almost away the whole time. She also wasn't good for the male heroine (he lost his sight when she made a pact with the spirits and all) , but Rose, a assassin, is able to squire just fine with the spirits and is a bit Mary Sue.
People thought that Baba created Rose (who wasn't previewed at all at the begining) because many things Rose does/likes in the game, is the same as her voice actor (who Baba likes) e.g.
Rose's seiyuu's motto is "I am me." Rose's true name is 'Rose is Rose.'
Rose's seiyuu's favorite film is Detective Conan: Assassin in her Eyes (名探偵コナン 瞳の中の暗殺者
. Rose's occupation? Assassin.
Rose's seiyuu looooves Detective Conan. The name of the prince Rose was engaged to is Conan in the JP version. Baba's nickname among his peer is also "Prince."
Game felt unfinished and felt like the just put a puzzle together which doesn't give you the correct picture. Many things from the trailers didn't appear at all and more. So Hideo Baba got a big backlash from fans in Japan and the game (like always) got hash reviews on Amazon.co.jp
Hypebole, but I wouldn't be surprised if that game cost him his job at Namco Bandai.