Seems you've taken offense at a joke. You know, there are plenty of brands of decaffeinated coffee on the market that taste just as good as regular coffee.
I have seen plenty of people who cannot reach the trigger of a Glock 20 without assuming a terrible grip where they rotate their hand toward the trigger in order to reach it, which in turn moves the backstrap of the gun out of the web of the hand (where it belongs) and puts it where it whacks them right in their "thumb knuckle". A couple of these folks have been determined to make it work, and shot it so much it has caused permanent damage and soreness to said knuckle, and now find it painful to shoot even a pistol that does fit them.
To say that a Glock fits everyone, is just as accurate as saying my wife's jeans will fit anyone.
BTW she's 5'3" 125 lbs, has tiny hands. The "universal fits everyone" Grock doesn't fit her, and I don't reckon her jeans would fit you.