Basically, all of their top players are bound to regress to the mean at some point – the Leafs don’t have a single player clicking at a point per game, and it has been many years since we could say that at the end of a Leafs season.
Pretty well all of their underlying numbers point to a hot streak coming at some point – low shooting percentage, generating plenty of chances and shots on goal, and almost nobody producing in line with their career averages. But they have to grind through games while they are waiting for their luck to come around.