So if Azeroth exist somewhere, it`s means what Blizzard may create a character that can travels in other universe and make him go to our. And this won`t happened. Ever. So no, Azeroth just can`t exist in real.
Are you saying that if Azeroth could exist, if Blizzard created a dimension-hopping character for their game, that character could show up here, but because s/he hasn't, it can't exist? I guess a simpler way is: Are you saying that if Blizzard created a character that could jump between dimensions, he could show up on Earth but because he hasn't, Azeroth can't exist?