The article author is described above as 'myopic'.
That's about right.
All he is saying is that he doesn't 'get' current music. Nor do I, but that's no reason for spilling ink. Fact is that current music appears to be just as popular as old music. The author's opinion is his opinion and I for one found reading his bigoted article a waste of time.
Roll over Beethoven, as has been said.