A couple weeks ago I was at a DE at VIR, and car had the steering wheel come off heading to the bridge straight. The driver did not fully seat the quick release and failed to check that the steering wheel was secure. The car went through the tire barriers and guardrail. The driver was okay, but the car was not pretty.
This happened to a guy parked next to me this past weekend as well at CMP. His Quick Disconnect was not fully engaged, fortunately he was able to get the car stopped without any damage. We also had a car go out without his hood latched, again able to get the car off track with little damage. This stuff just reinforces the idea of doing a proper preflight.
The guy in the video looks to me to be more a victim of mechanical failure. $#it happens.