He's playing in the "top" Finnish U18 league. You have to remember that it's the latter half of the season and the team got promoted to play against the bottom six teams in Jr.B along with three other promoted Jr.B Mestis teams. Technically it is the top league but he's not playing against great competition so his production isn't really comparable to players from the top ten teams.
He has played 10 games, not six, as you can see
here. You can open the game reports if you need to. His team has played 16 games so he did miss some games though.