Assists are by far the most useless basic stat, as it is largely a product of the system and the players around you. Plenty of meh players who have averaged a high number of assists per game.
That said, I do think he's a good passer, and I'm impressed by how well he runs the floor as a 20 year old rookie.
Aside from his passing, he's been really, quite, awful, statistically. He's shooting 29% from the three, and 36% overall. He such a bad finisher, and I have zero faith that he'll score whenever I see him drive. His TS is 48%. He also makes terrible decisions in transition, and I cringe each time I see him chuck a contested layup that has no chance of going in, which he does on most transition opportunities. He also doesn't rebound at a decent rate, and is an overall poor defender.
He has a loooong way to go before we talk about him like he's a fundamental piece to a contending team.