I think it's one of those things where no matter the requirements laid down accidents will happen. Even the best trained have come to grief. I think it was Hawker test pilot Bill Bedford who, during a demonstration flight in a Hunter in Switzerland, thought he was going to drill a hole in the pavement when on the back side of a loop. Forgot about field elevation, bit like the Thunderbird F-16 chap. Bill considered test and demonstration flying as the two most dangerous pass times in aviation.