Refs, and judges are human beings. They will always fuck up occasionally. It's just human nature. They always have, and always will.
That's why I just accept the judges decisions, and move along. Whether I agree, or not. Keeping that shit in, just builds a big backlog of sodium.
Both refs, and judges have been terrible, and great as well. As a fan you just hope the fuck ups don't cause a deserving fighter from losing a fight they should have won ( In our own opinions ).
It's a tough job. And they rarely get accolades when they're doing a good job. But, they get shit on hugely, if one thinks there's been a mistake. Especially, if that mistake costs one of our favourite fighter's a win.