This was always the next step of his game. When the double comes as it often is sent after he puts the ball on the floor there are always people left wide open. When he learns to recognize where the double is coming from it's going to open up passing lanes and the rest of his game.
I dunno about the rest of you guys but Derozan's handles look improved too. I havent seen him take too many misdribbles or travels or double dribbles or any of that. He's looking confident with his handle.