Different pistols do perform differently in the hands of different folks. I prefer the G42 over the LCP. And I've been shooting since I was eight years old. So, at 60... I've learned a few things about the variations in the skill sets of different people. It's rather bold to "guarantee" that you can solve everyone's or even anyone's shooting issues. And a bit overboard to blame all issues on the shooters before you know a damn thing about them.
Micro pistols, AKA mouse guns, can be downright painful for some folks to shoot. So, don't arbitrarily blame the shooters for not liking them, or for preferring one over the other.
Ugh, the lcp is a hateful little prick to shoot...