The IHSWCA surveyed this a few years ago, and the vast majority, at least 80% of the coaches said that they did not want it (it may have been closer to 90% I cannot remember).
I coach at a small school, we have had a fair amount of success. I have been very open about my opinions on class wrestling in the past. I will say that I have changed in this regard, while I don't think that class wrestling would add much for anyone, I also don't think that it would completely kill the sport here either. For us it would just mean that all of a sudden our regional, and semi-state guys would be called state qualifiers. The kids have said as much when we discuss this and it would be what it would be I guess. My kids that want to become better wrestlers and challenge for state do so. They work in the off season and go to camps. They are usually pretty successful by the end of their careers. The kids that would be helped by class wrestling are the ones who are on the team, but don't put in the extra time to get better, they would all of a sudden move further on in the tournament, and would be able to do so by doing what they are already doing.
I think that small schools can and do compete pretty well in our state. I never feel as though I our my kids are somehow cheated by the system. OUr kids have been state qualifiers, and those that have made it are the ones have are the best athletes, and the ones that work the hardest. This is the same at schools of any size, it just so happens that big schools have more kids that work harder and are better athletes. In my opinion my top end guys are at no disadvantage because they wrestle for us as opposed to anyone else.
Sometimes I do think about what it would be like to have classed individual state, and I think that it would be nice to have it a little easier in getting kids to "state" but to be honest that is for completely selfish reasons, I truly don't think it would mean that our kids have gotten better, just that they had an easier road to get there. The kids that work hard will still be the state qualifiers, they just will have a better chance to get there.