Judgement calls are as much a part of racing as it is sports that only take one ball...
Race Director/Flagman for example. May see things from a different perspective from someone in turn 2 or 4. Happened this weekend at 4-17. Human error is part of the sport.
Everyone is going to see an incident just a little bit differently. Even though only one person is right, rarely does arguing your point actually accomplish anything.
As they say, that's racin'!