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As for Dark Urge?
I do enjoy it (more than Tav I would say) but I think that Larian could've done a better job in certain parts of Durges story.
I do agree with this! Although I also loved it, nothing is immune to criticism and there is a lot there you could poke at

The Dark Urge was made for murder-hobos and psychopaths to feel represented in game
I think this is probably disingenuous or hyperbolic. Maybe both if you are speaking without having the experience. You certainly don't have to play it as a murder hobo and
it gives a lot of fan service to long time fans of the franchise.
Many of those players would never be down to murder everything but would absolutely jump onboard for the spoiler reasons. I myself just enjoyed it for the reasons listed in my previous post, having nothing to do with murder!
This character, like the game itself, has a lot a of rough edges and areas that could improve to be sure, but I don't think that reductive comment on the characters purpose really does anything but dismiss any nuanced enjoyment someone might have.
TLDR: I don't fit into the box you created for me