I think the United played for only Draw so they are happy at the end of the match. But this is a significant loss to Liverpool. Including normal people and gamblers, everyone trusted this team, but they spoiled their dreams. The most exciting match Ending with no goals is too boring. It's just bad luck for all gamblers.
They are actually not happy with the result and no team like to get a draw . Every teams want to get 3 points and that will be helping them to get better position in the league however I think that this kind of situation is quite unfortunate especially for liverpool when they were supposed to win it easily