Yeah, the late 70's, early 80's was a rough time for Metal. It wasn't, in my opinion, until well into the 80's before the genre actually produced some talent.....Not to say I'm fully educated on the genre to begin with; there may some great stuff out there from this time period that I haven't come across yet.
But anyway, yes this band is completely serious. Believe me, I looked it up. This sounds like a bad mix between Spinal Tap and Wheelz of Steel. The lead man funny enough goes by the name "Jon Mikl Thor". I can only assume he made the name up, but I can't find any information on a possible surname. After his attempt into the musical spotlight he went back to bodybuilding. I think we can all thank him for that.