Didn't see the whole game, just going by the stats, 4 goals on 32 shots vs. Finns at the international level is not a blowout and decent, but not good enough at this level I'd say.
Huska and Tomek had very poor statistics on WCH 18. Much under 90 %. But every on,e who saw them in action there said, they were fantastic. So, if a goalie stops 6 or more difficult pucks, and then the next one goes in the net, that is a not bad performance.