I am so glad people are still creating art like this. Reminds me why the game and franchise are still worth the time we spend on it.
Blizzard really takes free-promotion like this for granted. Why do you think they don't need to try? Because people do things for them for free.
Let's be real, at this point the only way we'll get stuff like this actually coming to WoW is if a WoW 2 gets made.