Zucerello led his team by 3 points that season...
Kaprizov beat Zucerello by almost 30 last year... prorated Zucerello upto 82 games and it's still 20 points.
I think his argument is that they have a great on ice chemistry, which is pretty obvious, and with all of the work they put in before and after practice specifically passing to each other, its clear they are using their cohesion for a mutual advantage in the games. Zucc is a smart player, and Kaprizov plays well with smart players, its not a slight on either to say that.
Kaprizov is a monster of a player though, at the top echelon of the league right now, those top few guys are all unique, comparing and ranking is truly difficult. I will just say that I am extremely glad he is in the league and on my favorite team. He plays with an effort level beyond even Parise, and has the creativity, skill and skating to completely take over the ice, even against the leagues best defenders. He is extremely entertaining to watch for die hard fans too, nearly every game he does something that makes you audibly say "Wow."