It was not, in my opinion caustic. It was simply an observation. I think two men who are being watched on TV by millions of Americans and are representing the corps should be as absolutely perfect as possible. I stand by that.
According to Donald Bady in his book Colt Automatic Pistols, the Army modified the 1911's flat mainspring housing in 1926 because some soldiers had difficulty keeping the grip safety depressed, especially during recoil when the hand can move on the grip. The arched housing caused the hand to stay higher on the grip. He references original documents. I don't recall if there was any mention of shooting high or low.
Also at Anzio. Although the Germans called them The Black Devils, not the Devils Brigade. That was Hollywood. Probably because Black Devils sounded racist.
http://www.firstspecialserviceforce.net/history.html