Well, what's wrong with that? I think it would be cool to have things like that in the game. Abilities and factions that only people playing as a certain race or class can join or attain. Like you should be a mage to join a mage guild or you should focus on you'r warrior abilities to join a warrior guild. Mabe if you'r playing as a combo class like a spell sword or a battle mage or something then cool but I don't think you should be able to use magic or at least not a lot of it if you'r not a magical class and I don't think you should be able to do everything in one play through or with one character, race or class. It was kinda weird that everyone no matter who they were could cast a fireball.
But it's not about what I think. It's about what the community thinks. Let the opinions fly.