I disagree with the OP. Rondo had a pretty good game, and passed very well. A lot of the points are just nitpicking. Rondo slowing down to get the poster?
If you look at what Ray did, you'll understand that you HAVE to try and dunk it, because if you lay it up, Lebron will DEFINITELY get it. I think it's a sign that ROndo learned, because a week ago, he tried to go off glass and Lebron killed them. Same reason why Cliff Lee in the playoffs laid it up, got blocked, and on the next fast break possession dunked it instead.
As for boxing out, there is absolutely no need to box out as a point guard against a guard that doesn't stay for the rebound. Once the shot goes in the air, Mo is already running back on D. This allows for Rondo to sneak between big men and grab a board, something that's extremely effective as you can see by his stats.
I think Rondo had a good game, and it's hard to complain about that. Simply nitpicking, you can do it to every player, and I just think for the sake of the fact that he wants money, it's been targetted at Rondo and it's a little unfair.