Whats more amazing to me is the sheer # of videos of people wrecking in this one curve.....
That's a very deceiving corner. I ride it on average of once a month. What you don't see is there is usually a crow of people on the same side as the camera man. That audience tends to push the "show off" button on some of these guys. That corner gets tighter as you near the top (right where he crashed), so if you come in too hot you can:
1) drag hard parts causing the rear to break loose
2) Panic and hit the rear brake, causing the rear to break loose
3) turn too tight on the double yellow line and hit a bots dot with your rear tire, causing it to break loose
4) Grab too much front brake, causing the front to wash out
5) let off the throttle suddenly, causing the bike to come out of the line and then having no chance of making the turn
and..
6) taking that corner, ignoring the first 5 possiblities, and then accelerating to show the crowd how cool you are dragging your knee... and then your whole body and bike before it's all over.
Oh, and by the way, if, by some miracle, you survived the turn and are exceeing the 15mph speed limit, there's a friendly CHP crusier at the top of the hill waiting to tell you what a great job you did!
With, practice you can safely negotiate that corner, dragging knee and all, but many people that try that, have no business doing so.