I can only speak for myself, but if they did that, I wouldn't have been interested in this game to begin with. It would have just been another WoW clone. I pre-ordered the game because I bought in to the Dev's vision. I drank the koolaid man. I loved their design philosophy that less is more.
Like I said previously, I don't care if others use mods. You want to crud up your game? Be my guest, as long as it does not give you an advantage.