I think the purpose was to show the overall look of the statue. Have you noticed XM to not add touches to their statues. And like you say, its the comedic accessories and scribbles that really make DP who he is. I don't think what you see in a unprinted, non-painted, computer shown picture will be the final thing you see.
If you guys want to give input, it needs to be tangible and something specific they can work with. For future reference, anytime XM shows a mock up like this....its because they want input and specific things that work or don't work from the overall look and feel of the statues. You all should know by now XM doesn't skimp on the details.
The comedic elements will come after the core of the statue is done.