If the refs called the series fair, Canada wouldn't have had to rely on the heroic goal from Paul Henderson to win. They likely would have won the series 6-2. Also, if all the NHLers that didn't show up would have played in the series against "the best the Russians had to offer" they would have won more convincingly. Only 1 name needed to end the Kharlamov debate....Bobby Orr.
Bobby Hull would have also made a difference.
But Canada would have had a tough time against the Soviets either way. Their team was together all year, while Canada's team needed time to gel together.