I see it has evolved into a skateboarder.. Early reports were that it was a luge downhill on wheels, which much more fits with striking the under carriage.
To me, it really doesn’t come down to a matter of the level of ‘repose’ of the ride. It is a matter of physics coupled with Darwin.
The accident occurred on the road to Burro Canyon Shooting Park. Somehow the anti-2A idiots will blame the gun range for causing the death and try to force it to close.