These kind of assumptions are really quite bad. And hopefully at least the players are not doing them at all. Every game is a different game, and every opponent has the chance to surprise you somehow.
Laine had for example 2+1 in both of his first two WHC games and had 4+2=6 points already after the first two games. Sure the opponents (Germany and Belarus) were on paper clearly weaker than for Kakko now, but after those games there were still opponents like France, Hungary and Denmark, and I think Laine got after all ”only” three points against all of them altogether. Many were exactly then expecting him to get a huge amount of points against Hungary, but he was left to just one assist against them, and Finland had really quite clear troubles with scoring against Hungary in general.
So anyway Laine was after the first two games having even a better PPG than Kakko now, and just one goal less (and none of them were empty netters). And after all his scoring pace went clearly down from there in the end, although it still was better than anyone from Europe had ever done before.
The games are still decided only on the ice, and there most probably comes still difficult and not so productive games for Kakko too. It might be even against some so called weaker opponent.