Quality control is an issue with any firearm. The problem with somebody saying they have a lemon is that it's only one example. You don't hear about the 999 that worked.
It seems to be more of a problem today with any maker than in past years. I have had two Taurus revolvers, A Smith & Wesson Revolver, a Colt Revolver, a Colt pistol, a Browning pistol, a supposedly quality 380 pistol, an Ugartechea Shotgun, all with show stopper problems.
I have two Ruger revolvers and maybe three Smith & Wesson revolvers with lesser problems.
Smith & Wesson went through a period when quality was poor.
So it seems like a case of name your brand, and no matter what it is, you can run into problems.