In many states, it's legal to pass on a double yellow, depending on the circumstances...a bike can get around most 4 wheeled vehicles in a matter of 2-3 seconds, generally, so IF the vehicle is traveling slower than the speed limit, and there is clearly room to pass safely, which appears to be the case in the video, then you can pass. The guy shooting the video at no time crossed the line into potentially oncoming traffic, unlike the idiot truck driver, who about wiped out at least one other bike head on.
I don't care if the guy is aggravated about bikes on "his" road or not...if he's that upset about it, he should contact his local police/sheriff and get the road patrolled and they should issue tickets. There is absolutely no justification in the world for what the truck driver did...he attempted to run the guy off the road, which would have at least resulted in serious injury for the bike rider, and possibly worse. I wonder if there were any open containers in the guys truck? Obviously, the guy has got at least anger management issues, if not more serious mental health issues. Who amoung us has not exceeded the speed limit on a road like this while out riding? I'm not saying it's something anyone should do, but it happens all the time, and certainly does not deserve actions like this.