I'm watching the Sportsnet feed, and they showed the angle that made it clear it was offside. You can say the rule is absurd and needs to be changed, but the call was correct given how the rule is currently written.
One of the dumbest rules in the game especially with the speed it’s played at. Never supposed to call offsides by a half an inch. The replays were supposed to be for egregious misses. Break the plane and you’re onside that’s all it should be if they’re keeping replay