Ummmm. Why?
Because it's Japanese? because it's different? because it's violent? They can't complain about the endings since no one who makes these controversies ever plays the game to the end.
As Yahtzee said, "If you find the Japanese offensive, you'll find this game offensively Japanese"
If the game wasn't selling well, I would invite controversy to boost sales but it's selling great.
Controversy is never something you should hope for but I was hoping for fox news to jump on the Alien Rape Hive in Duke Nukem Forever just so gamers would reply, "yeah, the game sucks, we agree, tear it a new one"