I wasn't extrapolating from this story - I already held the opinion about 1911's before I read it. Given the choice something like an XD or a Sig 220 is a better carry for users who shoot less. A single action trigger is not something you want in the hands of a person under stress (ie in a life or death situation).
It's not the Single Action trigger of the 1911 that presents the problem. It's a matter of training. If you are pulling the trigger before you are ready to fire or want to fire, you are probably going to experience an AD/ND. With DA/SA guns like the Sig 220, you have to realize that after the first shot the action switches to Single Action so a person who has weak gun handling skills is going to confront some of the same things he would with a dedicated Single Action pistol. -I have seen LEO's AD/ND on the range during their handgun qualification with Beretta pistols, Sig pistols, and HK pistols that were DA/SA. It's not the gun, it's the shooter.
No action or platform is going to entirely safeguard the shooter from his or her own mistakes. People have accidentally shot themselves (or their property) with every major model of pistol on the market. This is more of a software than hardware issue. -If a person is unsafe with a 1911, the person is unsafe. The individual would be unsafe with a Sig 220, a Springfield XD, or anything else you stick in their hands.