A quite large majority of shooters won't go thru thousands of rounds during their ownership of the gun - they shoot once or twice a year and that's it. Budget, life, other priorities with money.
If you choose to carry or shoot completely different triggers then there IS a problem, and if you won't shoot thousands of rounds to overcome it, it REMAINS a problem.
There's a lot of discussion about it, and the use of pocket guns which largely have long heavy DAO triggers only makes it worse. You pocket carry something like a M&P Bodyguard .380 with a twelve pound trigger one day, then switch to a belt carry compact SA with 5 pound trigger the next. Nope, getting used to the difference isn't the problem, it's using two completely different triggers which are about as opposite as you can get.
Clip knife carry users understand it, a tip down liner lock vs a tip up Axis or lockback the next. They are not the same at all - yet on the knife forums the guys who claim to practice pulling it out a hundred times to get the feel of it are given wide berth. Yet it's exactly what you would have to do to equal "shooting thousands of rounds."
Humans don't "instinctively" know how to do anything, we have to learn thru repetition. If you get something down pat where it's not a matter of thinking how to do it, and then switch up - you can create failure when you don't need it.
Kudos to those who train and shoot with both, for the most part the average CCW shooter needs to stick to one style and get good with it, not confuse the situation and create a failure point when it is a critical need.
So far most pocket guns don't go along with the program, so to speak, as they don't offer a SA 5 pound trigger with thumb safety. The SIG P238 is about the only one in the last ten years to make it to market, much less sell well. Most of the others didn't survive past their SHOT show announcement.
If you plan to carry a 1911 style action and also want to carry pocket gun, plan on shooting a lot to get used to having the opposites in your gun rotation. It's a bigger change to overcome than swiping an nonexistent thumb safety on a Glock.