Here are all the top 10 PGs ranked by Box Plus Minus from Basketball Reference. He is 10th overall behind some big names!
But what about other things? Here is a graph of the relationship between Free Throw Rate (FTr) and Turnover Percentage (TOV%) for the nba, again from Basketball Reference. PGs are in red and Lonzo Ball is the big red ball to the left. There is practically no one in the nba who is worse in both FTr and TOV% than Lonzo Ball. If we use FTr as a proxy (or substitute) for attacking the basket and getting to the line and TOV% as a proxy for handles he could be said to be the just about the worst combination of aggression (to break down the defense) and control (holding onto the ball) in the nba.