Nice screen shot! Darn shame I missed that broadcast. ;-)
Last I checked, that BCE designation was in use well before my grandfather was born...and he was around early enough to walk to the Yukon during the Klondike Gold Rush.
It has nothing, nada, zipppo, zilch to do with P.C.; but, like “the Communist metric system”, reality has no bearing on the unwashed, unlearned, Illiterati’s entrenched opinions based upon history beginning with their (or at best, their parents’) birth.