I believe the OP's concern was about limp wristing due to injury.
That implies the encounter has already gone wrong and many of the clues that imminent danger was at hand were ignored. Therefore, shooting a firearm with the injured hand in reaction to a lethal threat is basically trying to fix things already gone badly.
Buy the Glock, then, train with competent shooters. Obtain or buy a book titled "The Gift of Fear," which explains that we see danger coming along quite readily, what we have working against us is our own disbelief. If you are taking in everybody as being a non-threat, you pass over the ones attempting that ruse as part of their ambush.
You let them get close enough to injure and missed all the clues.
A gun isn't the solution when awareness, or a lack of it, is the problem. Shooting a gun with an injury isn't the best answer, and certainly, choosing one based on that criteria isn't going to offer the best solution.
I sold my G19C precisely because it was a fairly long DA trigger. Having carpal tunnel, it and the LCP I also carried were becoming difficult to comfortably fire. After 61 years of wrenching, remodeling, and keyboarding, the hands aren't what they used to be. I determined that a SA trigger would be the better choice, and that a safety would be required. Since I carried the 1911 and M9 on duty in the Reserves, I've used both, all the caveats about "The safety will get you killed" or "Firing under stress confuses you" miss the point - you see it coming, get the gun out and start controlling the situation. It goes to waiting far too long in the presence of a threat, and having to many internet lawyers telling us the bar is set very high when it comes to defending yourself.
There is also the issue of how did the entire episode be allowed to happen? Again, awareness is the key - don't go or be where danger is likely to happen. If that's the desire, then don't expect that many LEO academies will accept your application once the psych interviews are finished. If you are looking for trouble, the Police don't want you either.
Most of us choose to live where we will never experience a street gun battle, so worrying about limpwristing a Glock with an injured hand runs contrary to normal patterns of behavior. And if you need to be able to shoot one with a barely functional hand, then SA will do the better job. Hopefully you will still have a thumb to push off the safety. If not, I suspect you won't be using that hand at all. Therefore, and ambidextrous one and training shooting with the off hand would be better solutions.
There is another very real issue - we buy the gun, five years later the new is worn off, we've learned things, the gun isn't all what we thought. Or worse - there has been injury to the hand from all the other causes in life, and it's not as easy as it used to be. Or their had been other injury, a heavy belt on the hips with a double stack magazine isn't something you can tolerate 16 hours a day. Cops can't, they've been buying suspenders to wear under their uniform shirt, and many simply have to find other work where they won't be in pain all day from it. Heavy gun belts are not a positive virtue. Changing what gun is carried will happen.
I wouldn't put too much into it, buy the one you like, and if it's still the only one carried twenty years from now, it will be one of the very few that happens to. Most of us have to change and move on.