I don't think Danny is ruining the sport.
BUT AS YOU STATED, he has Olympic medals. Witch means whether or not he likes it he represents the United States of America. Doing stupid things like driving a van up the hill in the middle of the day, ( on a LEARNERS run too, the people on it can not ski/ snowboard for the life of them so they can not control themselves) Will not give a very good picture of the U.S. (not that any other countries Thinks to highly, of the country anyways.)