It all depends on how you define "playmaker." Curry makes plays, but he's not the typical pg that brings the ball up the court and initiates the action most of the time. Overall, I think Bogs played better in this game because he was the recipient of passes that allowed him to do more with the ball, not the quintessential pg. Where Bogs is poor is where he starts from a standstill, the defense is set, and he tries to penetrate the defense on his own.
After watching him play for a couple seasons now, I'm pretty convinced that his playmaking is not a winning NBA play. He could wind up with 5 assists and 1 turnover in 25 minutes of play, which looks good on paper but it doesn't account for the 10 extremely low percentage shots that were either taken by him or had to be taken by another player outside of those 5 assists that he got. I think he would be much better used coming off screens and as a last resort type playmaker.
To use ESP47's example, if we used someone else to playmake, would the number of low percentage shots taken drop to 5, stay at 10, or go to 15? how about those ast/tos? this is what we have to find out. My guess is that since both Joerger and Walton are using him in this role, they beleive there was/is no one better. Thats why I'm saying we should have CoJo playmake (assume Bogdan's role in the second unit) for about 10 games straight to make this determination.