Not disagreeing, but trust me it is very fascinating to experience. And no I don't think these folks are influenced a bit by the current TV-shows, they are mostly in their thirties and the three leads: a german - the growling priest, a norwegian - the woman with the antlers and a dane - the guy with the loop sampler/computer and on varios cow-horns and voice are all from a musical milieu of nordic neo-folk that started in the 90-ties. (Garmarna, Hedningarna, Sorten Muld, Valravn etc).

Obviously they have taken it to another place, where the theater-aspect is just as important as the music ;-)

Speaking of the comments in the youtube I find it interesting that a lot of native indians (both south and north american and inuit), can totally relate to it - just goes to show that if you go far enough back to the nature religions we are all the same ;-)