I haven't read the article, but I know the answer pretty definitively for me: the second I stopped listening to the radio, which happened in 2008 (when I was 17), because my favorite radio station in Orlando that used to carry a lot of punk rock music got rebranded to music for the 50+ demographic. I'm not even going to pretend that I know the reasons why they did that, but it was the only station I was listening to regularly, and pretty much my only source for new music as a result.

Gradually I stopped seeking out new music, instead just focusing on buying CDs for bands I already knew until I got Spotify in 2012, and that just kind of became an echo chamber.

I have a SiriusXM account now, and I do try and seek out new music that way occasionally via their phone app, but it's been a bit difficult since I don't drive since I moved to NYC. My car was probably 80+% of my music-listening time and now I don't really have that anymore. I can't really listen to music with lyrics while working (way too distracting for me), so the only music I listen to during most of the day is video game music from the 90's: stuff that's meant to be pleasant to listen to, but also easy to tune out by design.