Years ago when I was in High School, I think I was a freshman, I lost a close match in which I had thrown a guy and thought I had earned a 2 point near fall, I only got points for the take down and lost by 1 point.
After the match at home I was complaining to my Dad about the call. He told me "Son when you go out on the mat to wrestle you have 2 people to beat, your opponent and the Ref, you have to expect there are going to be bad calls that go the other way and you need to beat your opponent net by a wide enough margin that these calls don"t matter".
Point is there are bad calls in every game, you can't be surprised when some go the other way, it's part of the game.