One of the first books I read (long ago) on ballistics (Understanding Firearm Ballistics, Robert A. Rinker 1995) stressed this type of phenomenon, and cited several examples.
In one, a drug crazed criminal holds up a busy restaurant in Indiana with a pistol, demanding all the cash in the register. The owner is armed with a short-barrel .357 Mag revolver, 125 grain JHP. He begins shooting the criminal, as he won't drop the weapon and is threatening everyone around him. The restaurant owner has to reload TWICE, with most of the hits in the criminal's chest area, before he goes down. So that is also 18 hits, but not 9mm - .357 Mag!
The April 11 1986 Miami firefight between FBI agents and well armed bank robbers was also discussed - which ultimately led to the FBI's trial of the Glock 20 in 10mm Auto. As we all should know by now, humans can sustain multiple hits that will kill them - eventually - and still keep going long enough to kill you anyway.
So this gets into the issues of depth of penetration (get to the central nervous system), size of hole (rapidity of blood loss), etc.
Those calibers (big bore) and high velocity loads with heavy bullets, that can do this kind of damage more immediately - pose the alternate risk of over penetration and risk to others, which is a big concern too.
I believe we pretty much all think about these things in our choice of carry gun.
I just added a S&W Performance Center 629 .44 Mag 2" barrel to my carry rotation, so, I guess I was always in the big bore camp.
Thanks for posting - it's an excellent reminder of the tradeoffs we face out there.