Using your methodology with Sam Reinhart is a 36-41-77 player. Guess he's borderline for Canada too.
Reinhart was absolutely borderline going into the year because his season was a huge outlier (and this is my bad because I forgot to mention Reinhart’s outlier). Fewer people would have had him on the team going into last year than Hyman, and if he was considered a consistent 50 goal player, he would have been selected initially instead of Marchand. The fact that he’s continued his production is a big reason he was taken.
Hyman’s slow start hurt his case, and if he was continuing his production from last year like Reinhart has done he almost certainly would have been taken. So in some ways I agree with you that Hyman lost his spot due to this season. Where I disagree was that Hyman was an obvious pick that only lost his spot due to a bad month. This isn’t like if Marner had a slow start after being a 100 point pace player for years. Hyman was a borderline player who needed to show his year wasn’t an outlier to be a lock and he didn’t. He still would have been a fine pick, but it’s not egregious if he’s only going to be the player he’s been outside of last year.
The difference with Reinhart as well is that he’s also an elite defensive player, and he’s been even better than Hyman at Hyman’s PP role, which reduces one of Hyman’s reasons for being there. If Reinhart wasn’t the obvious net front on PP1, Hyman probably would have been taken in part to play that role.