I totally see where you're coming from Longbeachgary, it was a big pill to swallow when I first watched it.
my only gripe with the video is not the content, or the bluntness, or even it being posted on this forum. My problem is the exact sentence that says "If the rider counter steered they would not have collided with the truck."
I hate statements like that because it's so easy for anyone to be an expert in retrospect of an event. I could have been president too if only I had done that one thing years ago. I could have also not burned that morning toast if only I set a timer instead of scrolling through Facebook standing by the toaster like a total knob. See my point? The better way, in my opinion is to discourage riding too fast which is the actual problem, not the failure to counter steer. The video both emphasizes don't ride like a knob, and if you do, counter steer is your friend and not your enemy. Don't look too deeply into the video or the content of it. It shows how a bad situation was made worse and what happens when our instincts (not counter steering) leads to a tipping point where a recoverable situation becomes not-recoverable.
Graphic? Yes, definitely.
Necessary to see? Yes, definitely.
The only other way I might ever see this happening is when it happens to me and I'm slamming into the truck. I don't go scour youtube for crash videos, why would I desire to watch people crash? But people putting it in my face, like this, forces me to acknowledge the problem. And now I consider myself education. Now I know a real-world example and my brain just might, if I'm lucky, say, "Hey I think I saw this on YouTube once..."
2018 Rebel 500 ABS rider