As I said, it depends on the measuring stick of evil. I personally, I find the DnD Character alignment system utterly reductive and simplistic in all accounts.
But it was Garrosh who ordered the invasion of Gilneas; he wanted a port there. It was not "Let's be evil and kill all the Gilneans for the evulz" they are seeing through an order from their warchief. Sure, they don't feel awfully bad about it, cause they lack human empathy and all, but is not like they get off on it.
I don't see why you call forsaken hypocrites, they have always been interested on their own survival, the rest of the world be damned.