The value prop of what radio was has diminished significantly.
The other side of that is the "value prop," as you put it, only existed because radio had no competition. The only reason you know about it is you're old enough to remember. Once music listening became more personalized and less mass appeal, the "value prop" changed. This began 35 years ago with homemade cassettes and CDs. It affected everything connected with music, including MTV and music journalism. All of those music magazines disappeared. So radio today needs to look beyond its former purpose. The presenters have to do more than "jockey discs," because that function isn't needed. If you look fairly at the digital platforms, they're also pretty faceless, and there is very little brand loyalty there too. It's all about giving me what I want for the lowest price. Music distribution has become just another can of beans on the grocery shelf.