Not buying the character is just an excuse at this point though. People don't have to like the character, however that shouldn't be a reason to allow an instant ban. Character is not even shown to be completely game breaking yet. If she was game breaking they'd be forced to fix that. (Well...can't speak for Azuchi or other stuff)
In terms on visual it may look off, though none of it shows as something to be of superiority advantage over the roster so far. Pretty sure the character is available for use. On first week of release no obviously since only a few had access to the character as well as dealing with the unknown so she was banned on 'temporary'.
It's because she represents the bad side of KT games. I really do believe that has something to do with it. If Koei is as truly bad to TN as others said, can you blame them?
It almost comes off as a protest: We don't like you Koei: and we don't want you parading into a quality game where you don't belong. It should be considered an honor and a privilege for them to have our characters in their games. Besides, we all wanted Tifa or a FF character. What a letdown to anyone hoping Final Fantasy would meet the rest of the cast.