Aho has been doing well, granted, against sub-bar team, and another team with sub-par performance.
"Haven't been able to", or maybe some players don't see the point in stat-padding against South Korea.
IIHF see the point and count those points too when they determine who was scoring leader of the tournament, so it's pretty irrational thing to not to do 'stat-badding' when ever possible for players in teams whom have chance to do that.
In the context of Worlds, it would be absurd thing to even add players to a roster who won't/doesn't want score when they get a chance.
In the context of HFBoards, no fan of those teams that got opportunity for 'stat-badding' against Korea should later come whine about how "those points doesn't count because they where scored against sub-par team" as that only begs the answer: "players of [insert team] had that chance too, why they didn't use it then?"
For example, Team Canada.