That's where the bias is exposed in what they don't cover
It sounds like a lot of the same criticism I hear about music radio stations that don't play certain artists. Why doesn't country radio play Tyler Childers or Zach Bryan. If they did, they might attract a bigger audience or a different audience than the ones who listen now. We hear it about alternative radio that plays too much classic alt and not enough of the current artists. Classic hits stations that play the same songs rather than playing more deep cuts. Then when bad things happen to those stations, such as their owners go bankrupt or the station is sold to K-Love, those who were critical gloat that it shows they were right, and if radio had only listened, none of this would have happened.
This is where LPFM was supposed to solve all those problems, and put radio in the hands of more people.