it's a new class, this game needed it. almost every race can be monk, and it will introduce a new tank, healer and dps role.
the talent changes are pretty huge and this changes up the game for everybody.
wow has never been all about one race or one class, it's always been a balance, and the most interesting thing to do is add a new class to the mix.
when BC came everybody said blood elves and space blueberries were LOL along with paladin/shaman available to horde/alliance, when lich king came everybody said DKs were overpowered, when cata came the goblins were a joke, but it all works out in the long run and the game goes on
of course the pandas are silly, did you see the artwork for their mount? it's a chair on a rolling ball and he meditates to make it go
personally i'm glad to see the new artwork and zone design. it looks more inspired than it has in the past. if pandas are a joke, they are going balls to the wall to make it a very entertaining joke.
haters gonna hate, but wow is the best mmo out right now and has been for the past 7 years