Whichever. I'd bet--if I hadn't blown my money on a lowing Mega Millions ticket--that none of the posters here actually fit the primary demo. Myself very much included.
But taken just a tad more seriously, you can get polar opposite reactions from surveys of any sort. Start the music in June, start the music on Christmas Eve. Don't start the music at all. Play the barking dogs. Don't play the barking dogs. I want nothing but songs by people dead at least 20 years. I want nothing that hasn't been recorded by an American Idol contestant in the last five years. Christmas Shoes is sweet and sentimental. If I hear Christmas Shoes, I will never listen to you again.
I'm not saying they're relying solely on the survey, because of course, they can't, but it's one item in the toolbox they can use to take an anecdotal snapshot--albeit taken with a grain of salt.
I mean, I have consistently said not to do *all* Christmas until Christmas Eve. That means they don't listen to me. But I also give songs like Where Are You Christmas and Christmas Eve Sarajevo high marks, and they play those fairly consistently. Perhaps they listen to me half the time.
Which is still better than anyone in my house actually listens to me.