Many radio listeners do care but they also know there are many other alternatives out there for listeners--youtube, spotify, sat. radio, audiobooks, podcasts and so on. There will always be changes, for better or for worse, and most listeners who embrace a certain station and/or format will move on once that station changes...even after a "protest". (Remember the 2nd or 3rd ep. of WKRP that had beautiful music fans coming to the station to protest? When WTKK went from smooth jazz to talk, one of their hosts suggested disgruntled listeners head down to the station and picket--get 'em on the news. Ha!) Talked to a friend recently and mentioned the whole EMF to 104.9 situation. She said, "oh, OK, I was wonderin' what was going on!" Not like Tanger's folks let people know what was going on though the old format is still on a stream. And the website has a legal notice about the proposed sale.
Computers in a closet to beam out satellite talk, sports, religion, rock etc. iHeart could and has fill the overnights with a stream of one of the iHeart radio channels or podcasts (just fire the legal ID in). When a legacy rock station with local music goes away, people can go to a college station or a stream like MarkSkinRadio, BumbleBeeRadio (Kirsten Eck), etc. Maybe a 130 watt college station (also heard online) can "keep it local" for the North Shore now that 104.9 has gone K-Love. The live DJ on such a station can mention events in the community like the Beverly block party today...(and I will..)