The wisdom is, modern music is not about quantity, it's all about quality.
It seems The Getting of Wisdom is only by dental extraction then.
in my opinion the statement isn't wisdom: it's opinion...they've in common only O, I!
A matter of quality is subjective and the specific aspect ought be made clear.
You'd best start providing citations with the latter day axioms.
I think Willie makes the point for me regarding QUALITY.
He sings as song, he sells a song, he gives the impression the song & narrative are personal. Willie sings up to and slides from a note, he uses blue notes and more. He connects with an audience and that makes him a great singer. I don't much like the stuff Willie sings but that's a matter of taste.