Your not getting my point, that doesn't make it a good premise... they made some bad decisions when implementing the story back in the early days of development of the game. Nothing to do with the game we see today.
I get ityou want to be able to do whatever you want without any backstory already put in place, yeah, thatd be great, but it would not work in this game, and to many people, they enjoy being dragon born, adds a new element to the game.