A lot negativity to The Dark Urge seems to come from how over the top his execution is, and with how the character's actions at times will seemingly be out of the player's control, but to me that's part of what you're taking on by playing a character more explicitly defined characteristics.

The Dark Urge is exactly what a lot of us, myself included, asked for from Tav. A custom character more enmeshed into the narrative of the story. I don't know how well the Dark Urge will accomplish that, but as a proof of concept for more custom characters in the future I think it's encouraging. Maybe we'll see the standard D&D backgrounds get this treatment with more mundane outcomes.