What would make Holy Terror less commercially viable than any other band on the planet. I don't buy into that at all. If your music is good enough and your band gains enough of a following then your work speaks for itself. Enough HUGE bands still around today have come from nothing, worked hard and created a following.
Maybe if they had been good enough they could have been added as a fifth in the big four of thrash but that did not happen for a reason.
Short output bands tend to get a cult following and spoken about only in what ifs, what if they got more critical acclaim? What if they were more commercially viable? nonsense, what if they were just better at what they did and that would have brought them the notoriety that people claim they should have?