Popular music as we know it today, is a regression in terms of musical evolution. The tonalities, harmonies, rhythmic devices, were all going strong 500 years ago. Popular music, has not progressed music in any way.
To talk about how talented popular musicians are today is almost laughable if you compare them to musicians from the Baroque period.
And as for the metal thing, I saw the Anvil film the other night. At times funny, sad, and plain embarrassing, what it does is give false hope to metal bands pushing 40 who should have given up years ago, featuring idiots like this