No sweat SteveG1. The military teaches things its own way. I’ve never heard a disconnector described as a safety mechanism anywhere else. I’m curious what the SOP is for the M9 Beretta since it’s designed to be safe with a round in the chamber, hammer down and safety on or off.
FWIW I do think the 1911 may not be the best choice for defense for everyone because a manual safety requires more training. IMO one more thing one must think about is one more thing to forget under stressful circumstances. Every gun needs training of course. Plenty of people manage to shoot themselves or others with “safe action” Glocks because they fail to follow rule 3.
Actually there is an offshoot of cowboy shooting that uses 1911s, “Wild Bunch” matches that follow the 1915 era of the Sam Peckinpah movie. The main challenges are finding pre-A1 version 1911 pistols and of course doing everything in slow motion including bleeding. 
Now we’re here to destroy ignorance, not promote it. In action shooting we use steel plates and cardboards for targets. I’ve actually met people who actually thought we were shooting at each other. :rolleyes: Even with blanks this would be a profound safety violation.