Relax. Much too much made of this non-issue. I've got friends who are WWII combat vets who call them (the things full of ammo you stick in the handle of a 1911) clips. I'm not about to correct them. Ditto brother Vietnam vets who saw more combat than I did. They want to call them clips...fine with me. I know what they're talking about.
By the way, back in the day the term "1911" was seldom used to describe a .45ACP Government Model pistol. They were usually called a ".45", a ".45 automatic", or simply a "Colt", even if made by another company such as Remington-Rand.
Nomenclature huffiness strikes me as just another brand of one-upmanship. Communication is what's important.