Interesting clip.
I'm one of the lucky ones who have been able to ride the road more times than I could count. I know the turn very well.
It's called Picinc Tables turn (look in the background and you can see why).
He was, apparently, going too fast for his skill level, but he was not going too fast for the turn. It is a nice knee draggin' turn that can be safely negotiated at a "brisker" pace than he was traveling.
I'll try to attach a pic(s) of that turn. I don't know the riders, and can't even remember where I got the pic, but it gives you and idea of what the turn is like.
I have seen a LOT of crashes at The Dragon and it seems most are, suprisingly, not the result of absolute speed, but more a matter of relative speed.
The speed relative to the rider's ability is what gets folks in trouble.
I try to learn from other's mistakes. I have been fortunate enough (at Deal's Gap) to have never had to stand the bike up, get on the binders and go straight thru a turn.
Oh, I have made my share of blunders, but so far, the suspension and tires have saved me.
A buddy of mine is a control rider for STT, and we have discussed these things before. He reminds me that the equipment we are on - assuming you have good equipment and good sport rubber, will generally allow you to fix a mistake by turning harder than you had started out planning to.
It's a hard thing to do really, at least for me.
You have a fraction of second to decide: go straight or turn tighter.
So far I have been able to override my instinct to go straight.
For better or for worse, I try to fix my blunders by tightening my line. I have had the front end slide quite a few times, and a few times, both front and rear went bye-bye. But the tires - so far- have hooked up again and I continued on with nothing more than a tight butthole.
Of course, there are those occasions where you enter a 40 mph turn running 65 mph and no bikes/tires in the world will get you through.
I watched one of those incidents, matter of fact, it was the EXACT SAME TURN, only going the opposite direction. I was sitting at the Picinc table and watched a guy body slam a pine tree. I was SURE he was going to die as I held his head in my lap. Well, he didn't die, but he never did remember what happened. I will never forget what happened.
Like I said, I try to learn from other's mistakes.
His mistake? IMO, he didn't know the road like he thought he did and was going WAY too fast for the turn. He never had a chance to make it.
(OBTW: his front end tucked and he low sided straight into a pine tree just off the road)

Ok, I'll end my dissertation now.....

Brian

edit: the guy in the video crash was going away from the camera in pics below.