That has been the case for a very, very long time. Classical music is basically one big orgy of wealthy people. Musicians born into families of musicians that were well off. Same goes for other artistic pursuits such as painters etc.

I found very little actual insight in this article. I think musicians have been struggling for decades and the parents have known for at least as long to tell their kids to get a degree regardless of their talents. Schools like Berklee are… questionable at best. Lots off nepo babies just taking a few years to fuck about, basically.