I do, but I'm not sure how straightforward the issue is if our nature equally stood or fell in virtue of Adam's moral obedience or disobedience (given that it is through Adam's nature that he obeyed or disobeyed). I'll need to think about it more, and I'd like to see fuller context of De Moor's view.
The point is: does that judicial act of punishment of infants correspond to reality? Are infants punished as participative criminals in sin or not?
It looks like we will have to wait for more of De Moor (!)
It "corresponds" to the reality of the covenant under which they were constituted by God. "Participative," yes, in Hodge's definition of "guilt," which is sufficient for a judgment according to truth.