In the games I watched him (on TV), he played with good players on the PP but it all went through him and he was the one making it go. His vision, passing, and how quick he reads the play are ridiculous. I understand he's younger and not as physically developed as others, he's really light for his height, and his skating mechanics aren't that great, so he doesn't have a way to get separation at even strength.
You could look at how his points are weighted towards the PP as a negative, but I look at how much more he did on the PP than anyone else in his draft class as a sign of what a playmaker he is and the growth he could have once he adds weight. 41 PP assists, I think the next guy was Misa in the low 20s.