My father taught me to slow down before going over a blind hill or a blind corner, because honestly there could be any number of things happening in your own lane that you are not prepared for once you get to the other side. Would he have driven this way at night with a light that only illuminated 15 feet in front of him? How do you position yourself for a blind corner? I'd say you approach it with caution. Some motorcycle accidents are very easily preventable by the rider.
If he wanted to drive fast, he should have done so where he was:
1. Not on a public road
2. In a place where he had proper visibility
What he did would be reckless driving where I'm from and his cornering technique wouldn't change that. What if he didn't hit that truck but instead hit another motorcycle or a pack of bicycles? This is a public road and not a racetrack.