I honestly think some Dark Urge plot points are way over the top and again, feels like Larian writers try too hard to be edgy and cool, sometimes it works, sometimes it doesn't. Also, I think they are interested in the concept much more than to actually flash out the story in a way it will make sense...
have you actually played DU completely?
Also have you played original Baldur's Gate trilogy?
It makes perfect sense why devs put DU into the game, and why DU exactly as he is.