No shock at all. He had loser written all over him. He was surrounded by and supported by a mob of people who scared about 2/3 of ordinary Americans. His bumbling of the Vice Presidential thing was symptomatic.
McGovern was so morally myopic that he actually thought that his pledge to redistribute income was a winner. When a batch of Democratic steelworkers in Pittsburgh protested, McGovern joked that "they must think they are going to win the lottery." He couldn't take off his Marxist helmet long enough to realize that these blue collar workers thought that stealing money from one person to give to another was immoral.
What a joke ticket.