Its the kind of story they love to tell each other.
The bad guys are not just stopped, driven away or even killed outright. They are tortured and destroyed, insulted and humiliated. They like to scourge their enemies so much they have to make up the stories when they don't do it outright.
"Kill 'em all. Let God sort 'em out. They had it coming. Shoulda been done long ago..."
Remember what the Confederates used to do to black Union POWs?
