Audiophiles are just as much outliers as teenagers who like oldies and, in truth, they always have been. FM sounded better than AM from the start, but until pop and rock formats started moving to the band, listenership was small. And did those pop and rock fans abandon FM or even complain in great numbers when commercial broadcasters started to process and compress and brighten and punch up their audio? Nope, they just kept on listening, many even buying boomboxes and using them at settings that emphasized the worst aspects of FM audio. And now most would just as soon listen to mono on a Bluetooth than a high-quality component stereo system. This shouldn't surprise anyone who realizes the dirty truth about American mass taste -- and that truth is that it is as lowest common denominator as it gets.
Yes but you can't forget how convenient it is to fire up a Bluetooth speaker and pair to a mobile device. In MANY cases, it's likely a lot clearer with TONS more variety than an AM/FM radio.