Cans do change the equation somewhat. A PCC with subsonic 147s and a can is pretty great for shooting indoors without earpro.I mean. A 6” 9mm “pistol” is much easier to use for my wife than a 16” AR with a can. I agree with your points in principal. But I’m more confident in my wife using the pcc with a can of I’m not there to protect the family than an ar if it came down to it.