It amazes me that there are still some people out there complaining that the pandaren “don’t have any basis in lore” or “are just an April Fool’s joke.” At this point in the game, the pandaren have a stronger place in the lore of Azeroth than even humans do. They have a much richer backstory and a more complex culture than any other race in the game, and their culture and story are all there in the game for us to experience without having to read novels or comic books to understand it.
Now, that’s an entirely separate question from whether you like the pandaren or not. You are completely free to like or dislike anything in the game and no one can tell you otherwise. I’m not all that excited about the pandaren myself. De gustibus non est disputandum and all that. But no one can say that Blizzard has not done an amazing job of developing and realizing the pandaren as a race.