Weak goaltending, blueline, and team defence.
They're the type of team we match up well against, not poorly. Even though they have McDavid/Draisaitl, their #3/4 options are RNH and Kassian, ours are Tavares and Nylander.
They have the better top 2 players (though ours are still pretty high end players), and then we're better across the rest of the roster. Blueline, goaltending, depth scoring, etc.
I'm not sure who our hardest matchup is. Physical and strong defensive teams, like Boston, Columbus, etc give us trouble. Montreal somewhat fits that bill, though their blueline after the top 2 thins out pretty quickly. Maybe Calgary if Giordano is still good and Markstrom plays well.
Vancouver I think is the best team after us on paper in the division, though I don't think they're a bad matchup for us.