You mean the -3rd and the -2nd games or something... The tournament hasn't even started yet. And Laine was playing vs Oliver Ekman-Larsson + Niklas Hjalmarsson whereas Matthews was playing against Luca Sbisa + Mark Streit(Admittably a good play vs Josi towards the end).
I think that it'd be appropriate to at least wait for the tournament to begin and see how they do against similar opposition - Team Europe being considered the weakest team with no reason to even try to win, after all.
When we have Team Finland with 0 shots in the first period and Team Sweden with 11, it's tough for any one player to shine, much less an 18-year-old. In comparison to the opposition thus far, Matthews has been playing on an overwhelmingly powerful team with no pressure on him to score at all whereas Laine has been playing on a team that has been getting destroyed on every single facet of gameplay.
They are on the same group so the actual group play will be far more relevant as far as I'm concerned.
All that said, Laine hasn't been that great. Here's the best I could do and most of it is pretty optimistic:
https://streamable.com/d5li