If they have to resort to cheap shots like setting up a scenario like that for publicity, then I'm guessing it's not that great. I haven't listened to them and I don't plan on it either...
Unless, the guy in the video isn't really Glenn danzig, I would guess that isn't set up.
I am not taking up for either person, as I think both grown men acted like children, but I do have to side more for the other guy slightly. Glenn made the first physical move and pushed him pretty hard. I would like to think that if I were in that situation, I would have a cool enough head to simply walk away, but after a heated argument, if someone pushed me that hard, I probably would have wanted to knock his block off as well.
In the grand scheme of things... it's silly. There is certainly some aggression in metal music. I have picked out the biggest guys (though I'm no small guy) in the moshpit to slam into chest to chest and shoulder to shoulder. I have also drank WAY too much and pissed people off to the extent that I was literally asking for a fight, but I have neither pushed anyone, nor punched someone in the face at a concert.
The last thing I expect are members of metal bands to be boy scouts. They play metal music for a living, so I expect them to be rough around the edges at best, but EVEN in metal music there should be some level of professionalism. I don't see much of that from either of those two.
Bryant