I have to disagree with you on this. Calling power metal vocals and folk metal arrangements cheesy borders too closely on calling opera and classical music cheesy. Obviously, there are a lot of main stream music fans out just "don't get it," and will say something like "seriously, who actually sings like that?" not realizing that from the perspective of a truly educated musician, opera is arguably one of the truest forms. Then these little idiots try to imitate operatic vocals completely oblivious to the fact that they're doing it wrong and say "you see, that doesn't even sound good."
Similarly, they pick on classical music for being "boring," or "too long," because they've been culturally conditioned into a form of musical ADHD, and really have no clue how much more in depth classical music really is than the shit they listen to.