I actually disagree , the driver seemed to be the reason for the crash it seemed he had more room to go straight or soften the turn or even steer out of the roll & hit a wall would be preferable , he was also very close the barriers with the wheels up .
OK I am wrong he was counter steering as it flipped so it it was not driver error
I do agree it was the wrong place to do it though , obviously the car is relatively safe in a straight line if it has only crashed once in 50 years so the best choice is do it on a drag track