I, for better or worse...mostly better, have some legal experience in these matters having been an expert witness in an IP deposition (Gibson vs. Brian Moore Guitars) where I demonstrated that one of the key points in the suit...a patent...was basically invalid as I had designed, made, and sold guitars that had the "protected" feature ten years before the patent was issued. Later on came a similar "I did it first and sold or published" situation with Larry Fishman getting tweaked about a D-TAR pickup I designed...and he patented too late. And more recently, I've been involved in the Rickenbacker vs. Lollar rumble over the use of a design...the "Double Horseshoe Pickup" on which the patent expired around 1953 or so, yet Rickenbacker attempted to protect via TradeMark...which is not supposed to cover functional aspects of a design. I've also sold my interest in one patent and assigned another...to Gibson.
I do not believe in the piracy ensuing from the "information wants to be free" movement which strips worthy creators of their rights and ability to earn a decent living. Yes, IP laws can be too restrictive of creativity. So change the laws, but keep a modicum of protection.
What the upstart band is doing is similar to Internet trolling. And as I said, I'll bet there's a back story there. Someone is trying to stick it to someone for reasons nobody is talking about.