When you turn it over, it's like you are shooting 0%. This is why people like Lowry. Also, he consistently attacks the inside and finishes or draws fouls on the opponent's bigs. A very very very very very useful thing when your frontline is undersized and you are trying to get their 7 footers out of there.
And that's the exact reason why I like Lowry and should be starting over AB. He's great at running the point and he's not turnover prone either. He doesn't make such rookie mistakes either. We'll have to see next year in the training camp and pre-season to see how it all plays out though.