This blackout law is asinine.
In a way it isn't. If someone in B.C. hears the wrong message, they may not go and vote. It's just like saying the GOP won in CA 3 hours before voting time ends and then the people who were going to go out and vote don't go. They can't call it BEFORE everyone votes, that puts some other people right off the track. I'd go anyway but I see the reasoning.