Well, as far as I can remember,
there was also some booing at the Russian anthem after the CZE-RUS game.
Seems odd you didn't mention that. Although I don't know why was
@SaltNPeca mentioning Slovak fans in this case.
And to be clear, I am not trying to stir up some offensive discussion here, just an observation. As a matter of fact, I agree that what happened after the SVK-CAN game is a disgrace and to be honest, it pissed me off more than the actual result of the game.
Anyway, good luck, I hope Czechs win the game.