I tend to agree; however, there is more to it than that. And I'm not sure what it is, but it seems to have something to do with how discriminating the listeners are. My opinion is, the general public is not very picky and they are easily influenced by things like the attitude of the singer, what they suspect the other listeners are thinking, how loud or quiet it (the music) is, and probably other factors as well.
I think I am very critical (but I try to be really nice when I'm providing feedback). We have "variety shows" occasionally where I live. More than once, someone--often a young person, still in school--will enter and many people will talk about how good s/he is. So I look forward to the performance, expecting an amazing rendition of something. I am pretty much always disappointed by an uncertain sounding voice that's having, possibly, a little bit of a hard time hitting the notes right on. Not terrible, but certainly not nearly as amazing as I've been led to believe.
So I think the general public just doesn't discriminate all that much. If someone has the gumption to get up and perform, they think it's amazing. I've noticed the same thing with recorded music. I had a singing group for awhile, and we made a CD. The CD is extremely bad, but many many people have told me--and I know at least some of them were sincere--that they liked it and thought it was really good. I just don't understand...how can people not hear any better than that?
Anyway, not 100% on topic, but related....
Vicki