I mean, points. They were carolling in a local game store. That's pretty kewl. And I'm not really that much of a grinch...however, in a place where half the customers are going to be athiests or pagans, and most of the remainder don't care, maybe you should step away from "Oh Little Town of Bethlehem" and "Silent Night" for a bit, and do something a little less cristocentric?
Probably they were practicing for a school event, and hadn't rehearsed "Green Grow the Rushes" or "Holly and the Ivy" (I'm still surprised that this song qualifies as obscure.)
Sigh, I got so bitter when I became a gay pagan agnostic. It was a lot easier when I thought "hey, it's just Christmas, if you don't like it, ignore it."