Firepower vs balance
There are many things that in theory are nice but in reality just don’t work. I remember the first time I fired a Glock 45acp which was 13rds + 1 for a total of 14rds and the thing just seemed too heavy. If I wore that in a leg holster or thigh rig it would be too much. There are so many arguments in the handgun world that I just don’t engage in because the truth of the situation that usually ends the caliber debates is ” get a Carbine” and forget about your 9mm vs 45acp or .357 Sig debates.
For home defense I don’t know why anyone wouldn’t want a carbine or shotgun with a light on it vs a handgun. Ballistics test show us time and time again that loading up your magpul pmags with 30rds and frangible ammuntion is a better thing to use in a modern home than a 38 special or 9mm handgun. A better thing would be the 20rd magpul pmags which give you a stronger magazine but better balance and easier maneuverability than a larger protruding magazine. After all, what firearm has 20rds and has the balance of an M4 Carbine?