I'm a bit on the fence so stick with me here for a moment.
I'm not defending the Refs, nor am I saying bad calls never happen. It is true it happens in all sports, It's bad in Baseball, it's bad in the NFL and they do have video replay which they review during challenges and still at times get it wrong.
I don't know how often I am watching a game and I say to myself after a penalty is called "I need to see the replay, I didn't catch what happened." That's because one pair of human eyes can't watch what all 10 skaters are doing at one time on the ice. I understand it is their job, I get this is what they are paid to do, but until there are 6+ refs on the ice to catch everything, a ton of delays from conferences and discussions, or excessive video replays, i'll take the human error over what it could come down to which is a painstaking process to determine the validity of a minor penalty.
They need to make snap decisions based on what they see at that time. The trip in overtime wasn't a great call, but it wasn't an awful call either. In the moment, the angle the ref is standing, and what the infraction appeared to be, you cannot fault the ref. There is such a fine line of determining right in that minute if the blade of the stick caught the skate or the skate caught the stick. Either way I doubt anyone here watching the game was 100% confident during live action as it happened before the replay was shown with absolute certainty it was or was not a penalty.
This is the reality of sports, and being a sports fan. I don't want video review after every infraction. I don't want computers or technology determining what is and is not a penalty. I don't want to sit in front of the television for 10-15 minutes, have them cut to commercial break just to return to determine if a penalty is a penalty or not. That is a ridiculous concept coming from a hockey fan and a sports fan in general, it would slow the pace of the game, and just cause further drama and annoyance.
It was one call in overtime in 1 of 82 regular season games. The refs aren't out to get the Red Wings, it's our viewpoint as fans to defend every action of our players at all times, more times than not because of our bias we won't agree with calls.
So what can be done about the refs? As far as i'm concerned the system as it sits is fine. You take the good with the bad, sometimes it goes our way, sometimes it doesn't. This is how sports have always been and will continue to be.