For most of the last 25 years I've used a table saw several times a week, sometimes for hours on end. I've been hit just below the belt, but above my johnson one time; one of the few times I was not standing off center. Turned me black and blue all the way to the tip.
Man was that ugly but that's not all. Try explaining it to your wife.
The guy in the video was extremely fortunate he didn't lose most of his hand. I'm fortunate as well because I've had a few close calls. What's worse is that nowadays I don't use my power tools too much. Contrary to what you might think, that frequent use might breed carelessness, it's more of the opposite.
These days I have to go over safety with myself before I fire a tool up. I have to force myself to think about and remember what can happen. That saw don't care how many years of experience you have.