With respect, it seems this thread is going down the same path that several others have, and it's turning into yet another attempt to try and ask the same question and propose similar ideas in a slightly different manner to gain acceptance. Programmers, successful ones anyway, aren't there to expose their listeners to new music. They're not there to educate their listeners or to turn them onto music those listeners may not have known they liked otherwise. They're there to play the music that tests well and resonates with the greatest number of listeners in their key demographic and give the listeners what they've told you, through research, they want to hear. Throwing in "new music off-lable that programmers seek out themselves" will simply cause many listeners to switch off the station. That's the LAST thing programmers want to risk, especially in today's competitive climate.
And yet again, what's done at one station in the Kansas City market and using one specific song as an example does mean it would work elsewhere, or certainly that it should gain widespread use.