instant gratification also might have something to do with it disappearing
I completely agree. Other than Pandora, I haven't listened to the "radio" in a few years.
Regardless, I feel like Rock is just having trouble keeping up with other genres (rap, edm, etc.). Rap artists can throw together a mixtape in a week and have a few million views within a few days via YouTube. Accessibility like that caters to the younger generation (my generation), so the media promotes/profits. I'm not saying that modern Rock bands are trying to remain unheard of or act like hipsters, but it seems like they just don't want to associate themselves with a lot of the hot garbage that's on the radio and TV everyday.
BJ Barham would add, "Of course we want to be successful. We don't want to be radio big ... there's a difference between being big and successful. Like the bands like Drive By Truckers and Wilco who go out every night, play for a thousand people, and make a great living doing it." And the off chance that he would ever try to become 'The Rocker' on American Idol, auditioning while his band was home at home none the wiser, "I will guarantee that, in anybody's wildest dreams and nightmares, that will never f-cking happen."