Exactly. This is more of the minutiae that Mac-olites like to cling to, as useless as "how many angels can dance on the head of a pin".
The pajama top could have been on her and one breast still be exposed. The top was folder over, after all, and not necessarily spread out over her entire chest.
Does Henri really think this could serve as some type of "proof" of "innocence"? Or even "proof" that others were there?