I remember in 2002 prior to the game Don Cherry was asked by Ron MacLean about the referee for the game. It was Bill McCreary I believe, a Canadian. Ron asked if that was a problem and Don responded by saying: "We WILL get the first penalty because as Canadians we will bend over backwards to make sure things are fair." This was true, the Americans did get the first power play. Cherry said in the first intermission that it should be even from here on in, unless McCreary "wants to make the Cup final". In other words, if anything the NHL would have preferred the Americans to win on home ice over Canada.
However, that was a great game and refereeing wasn't an issue.
In 2014 the same thing comes up, a Canadian referee for the gold medal game against Sweden. Does anyone think that had an affect at all? Canada breezed to a 3-0 win and none of it had to do with the refereeing.
So look, take the best guys from the NHL. Take the seasoned ones, the guys that are used to hostile crowds or 7th games in the playoffs. I don't care if the ref was born in Madagascar, if he's the most qualified that is all that matters.
In 1972 Canada had to deal with Joseph Kompalla who was specifically picked against the Canadian games for a reason. We still won, in fact Parise almost clubbing him with his stick might have actually prevented him from throwing the game in favour of the Russians. Who knows? But that was a perfect example of a ref who went out of his way to be bias. When has that happened in Canada's favour? People point to Koharski in the 1987 Canada Cup, but he had some bad calls on both sides let's remember. Canada doesn't need charity in these tournaments.