linked article shows...per the video, they were talking about why more gunshot victims were dying instead of being treated and sent home...I'm also assuming these events were 'close in' encounters, i.e. not from a long distance.
Frankly, IMO you're the one who's ill-informed.
Back in the day, in NYC, as kids we heard of gangs using "Zip Guns" that shot .22 Caliber bullets...that was it...bad enough, but not the arsenal we have today...oh, for the good 'ole days...btw, even a 22 LR, which I shot a ton of, can be very scary...but a 9mm, as mentioned in the linked article is a whole 'nuther matter...
Link: https://www.gunbacker.com/9mm-vs-22/