That's a bogus argument, however. "Mass" appeal is not "exclusive" appeal. Many masses of various demographics can co-exist. No, Taylor Swift, if one insists on that example, doesn't fit all of them. But that doesn't mean that they don't all have a degree of "mass" appeal.
And how would it work to have "diverse cultural appeal" for all of the limited frequencies? Let's set aside the issue of ownership rights and First Amendment protections for simplicity. How would it work? X hours per day you must do for men, X for women, X for this, X for that...and what do you have as a result? A mishmash that ultimately serves no one.
Certainly limited frequencies are true, but irrelevant. There have always been limited frequencies, and always been audiences without "their" desired tastes reflected. If anything, it's less relevant or important today, in an era of iTunes, XM, Pandora et al. There is no inherent right to a specific format that appeals to you or me (setting aside that groups of people who share similar demographic and other criteria might have entirely divergent desires when it comes to content), and that's not a corporate conspiracy. It's just life. If anything, the heightened competition and increased financial pressures make it all the more likely that if there were "gold in them thar hills" when it came to untapped formats, that someone would be rushing to stake their claim. Anything to gain a competitive edge. So when it doesn't happen, that might be saying more about the actual business potential than any ulterior motive.
The question I put to him was tongue and cheek since I took his post as obviously trolling. I should not have replied to his post since I did not want to derail the thread and end up with replies like yours which I agree with. My point after that first sentence is about me simply questioning why I am getting trolled upon by simply having an opinion that differs from management.