I should note I'm not asking this so people can flame each other, start arguments, or be downright rude. Friendly debates are welcome, but I encourage people to be civil to one another, because this is just a game we're talking about. This is a genuine question.
What about Mists of Pandaria was childish, in your opinion? I simply don't see it, to be honest. Was it how the Pandaren looked? Was it the messages of balance and harmony? Was it the way Pandaria looked/the Asian theme? Overall, what didn't you like about it?
If you felt the opposite, why did you feel that way, then? What about it was equally or more hardcore than other expansions? What did you like about it overall?
Mod-Note: Taken the freedom to place a lock on this thread, it is at some pages a little too volatile and too less outcome of a constructive discussion.