Have the comedy nerds taken over? I’m not sure. I do think that what was once “alternative comedy” is now just as central as whatever the alternative to alternative is (what Burr calls “club comedy”/club comics).
Haven’t heard Bill Burr’s podcast itself (doing daily subway rides instead of daily car trips is dramatically cutting down my podcast listening), but it sounds like he’s hitting on the biggest divide in stand-up today.
Right now I buy into the idea that comics are all just playing the “sport” that fits their skills, and everybody should just go see/watch whoever makes them laugh.