If he were playing with scrubs those totals would be optimistic, but playing with Nylander, I pretty much expect 35g/70p. I said this before the season too in the projection polls. His game is just so mature and smart that as a center the puck is always going to be funneled through him, so he'll pick up points even when he doesn't make dazzling plays.
Leafs are going to score at least an average number of goals, so *someone* is bound to get a decent number of points and be among the NHL leaders. In past years that was Kessel. It's not likely to be Bozak/JVR/Kadri, who don't have complete offensive games, and probably not Marner as he's still learning to play against men. So by process of elimination, the smart money is on Matthews and/or Nylander putting up strong point totals, especially since they're playing together and doing well so far. It's not common, except in case of an injury to a top player, for a team to be average or better offensively and not have someone in the 65+ point vicinity.
Another thing. All 8 of his points are in 4 road games. Last night the Hawks matched the Toews line and Hjalmarsson pairing against Matthews more often than not. Still 2 points. Imagine when he starts playing some games at home where the Leafs get last change.