Not sure Maymon is a good matchup for Robinson. Moore is a very good defensive player.
I agree that we'll see more Moore, but I don't think his minutes will come at the expense of Maymon's. I think he'll play most of Reese's minutes off the bench.
Maymon is better at defending away from the basket than you'd expect. His feet are pretty good. When he and Stokes are in the game together, he'll defend Robinson. When one of the two is out, the other will defend the 5 and Armani/Reese (hopefully more Armani) will get Robinson. That's the way I see it anyway.