Guys its a piece of steel and he stood most of his weight on the section that was closest to the tree plus the kid looks like he might be 130lbs soaking wet. ou can get a lot of steel to survive that test. I like moras sure enough but I wouldn't match it up against a tank based on that test.
Of course a mora isn't as strong as a 1/4" full tang tank of a blade. But what the video shows is that it's more than strong enough for normal use.
If a half tang 2mm thick blade can survive this, is a 6mm thick blade absolutely necessary in a 4" knife? No. Doesn't mean you can't like a thick blade though.
The video isn't trying to prove that a mora is the strongest of knives. Just that it's stronger than most think.