I'm not sure how many died, but I know at least 10 of them were fine.Do you know how many of those 19 attacks resulted in serious injury or death of the human? Did all 15 of the handgunners survive?
And I know more than half of the bears were soaked in bear spray.
Bear spray works good on nosey bears, but I've never heard of it working once on an attacking bear.
Check out the "Chukes Outdoor Adventures" youtube channel. He has been keeping track of handgun versus bear incidents. Also, the Ammoland website has a great list of all bear versus human incidents.
It all has a bit to do with luck.
We had an incident with a 1000 pound Coastal brown bear. It was shot 9 times with very large caliber rifles before it stopped. Then there was recently a guy who killed a big brown with one 9mm round.
As always, shot placement is key.
I carry a 10 mm because I'd rather have 16 rounds of 220 grain lead flat nose, than 6 rounds of anything from a revolver. I'm an experienced shooter, but getting one good shot while stumbling backwards on your butt is extremely difficult with 44 mag or 454 Casull. I can get at least 8 rounds off from my glock in the 1.5 seconds I'm falling backwards. I play the odds.