Honestly after reading some of this I'm a bit worried that the Urge might end up getting out of controll for the player playing him. Which can be fun if you are into it, but at the same time you end up in the place where you don't know what you are doing and what you get yourself into. And I guess it might not be the best playthrough for those that want to experience a lot of the world and companions since the Urge seems to slaughter everyone he can.
Restarting is an option if the origin turns out to be too edgy and wacky, but I guess if it happens 30+ hours in I would probably stop bothering with the game and only return to it at a much later stage.
So for me now the idea stays - multiplayer game to create a Dark Urge origin character and the actual main character as Tav - to both see if Tav is really such a let-down as it seems and at the same time to have the option to kill off the Urge if that character gets too extreme and I stop being interested in it. Hopefully I can then continue the campaign with Tav alone if necessary.
