I know.
Cool.
Because . . . Glock doesn't use MIM? Or Glock does use MIM but even so their guns are head-and-shoulders more reliable than everybody else's pistol offerings?
All quality 1911s (and there are tons of them out there, only some of which you mentioned in your next paragraph below) pass that test too, even if they're the Series 70 without the firing pin block. Fact remains for Glocks (unless you augment them as you and your wife do) if ever anything threaded through the trigger guard and then fell the wrong way the trigger can be pulled and a round discharged. And for that matter if this were to discharge one round, with the gun fumbling around under its own power with something stuck in its trigger guard, and the recoil energy of the first round discharging, it might well fire a second round too.
Can't happen with the quality 1911, even with the thumb safety disengaged because of the grip safety. And of course with the thumb safety engaged the thing just will not fire even if a stick or a peg or a hanger or whatever threaded right in and jammed against the trigger. I have at the range disengaged the thumb safety and pulled with all my might to pull the trigger, without disengaging the grip safety and it wouldn't yield.
And also like a Glock the quality 1911 can take a beating and yet will still fire. This has to do with everything from the rounds being standard ball and the feed ramp being ground to spec and the spring in the magazine, the gun is a system and all its critical parts must be made to spec with the right metal, but if this is all so (i o w, a quality 1911) then the 1911 is every bit as reliable as a Glock.
Glocks though have the inherent advantage over 1911s in their capacity. The nines can hold 17 rounds +1, and even their full size .45s can hold more than the ten-round limit so popular in gun-control-drunk states like mine (MA). Meanwhile the 1911 just works with its standard seven +1 design although eight-round mags as reliable as the seven-round mags are easier to come by more than they used to be, but those 10-round extended mags, along with being too long and looking silly, I'm not sure they're as reliable as the seven-rounder.
So you can't go with the 1911 if you think capacity is prior once you've established that reliability and safety are on a par. A loaded pistol and one spare mag makes the capacity difference between the two of them (Glock 17 vs. single-stack 1911) kind of ridiculous, kind of like the difference in how much ammo troops can carry with the 5.45 (.223) vs. the 7.62 .30-caliber. Our Army and Marines went with the M16 and never looked back. Probably people should do that with the Glocks too.
Which is why it's important to note the inherent risk to them. If you're mechanically inclined and interested in doing it, you've found a third-party device to add a safety mechanism to the gun, but most people aren't going to do that, so the question for me comes down to capacity vs. this specific safety risk.
This doesn't have anything, to do with anything, why did you write this? Seems like something that should have been cut in editing but it evaded detection.
Extended grip safety, yep. There are a few other tweaks to Browning's 1911 design (the year 1911) that are regularly packaged in quality 1911 (the gun) offerings from all the gunmakers, including Sig and Colt but also now Ruger and Smith. But you are right that some people have done that to the grip safety. Nobody wants to get into a gun fight, injure your hand or something, and then not be able to shoot because of that. Do you know if soldiers or Marines ever disabled their grip safeties on their .45s? (Obviously this would have been before they all went with 9-mm Berettas.)
First handgun I ever fired was a Glock 17 or 19, I'm not sure. I don't like the more forward cant, which is, as you know, not something you can do anything about.