Very true. It's been cutting into my Blue Jays time for sure (but they've been disappointing lately so there's not much to see anyway).
Whether or not the players go to Korea or not I'm not sure how much interest will be there for the tournament given the timezone is literally about opposite of NA. Not sure how they are going to work that. And the next winter games after that are in China...
I think the Olympics always sell. If Canada USA made the final you'd still get insane ratings like 20 million Americans and 10 million Canadians at least.