My guess is that things have only changed for the mega-stars. Household names that are in the public consciousness need to work to stay at that level, and keep people hyped about their work. I think those people are likely already making significant concessions in their work for this, so it's not like it affects them that much.

Does it really matter for artists that aren't being played multiple times a day on iHeartMedia/Clear Channel radio stations already if they follow this model? I doubt it, unless their goal is more about fame than art, in which case the question answers itself.