No problem, man.
I'm secure enough to admit that may be one factor. Not the only one, though.
Let's say you're right, HOTYH. Even then, cynic is correct: there are so many factors to consider, it would take a while to narrow it down enough to give you what you're looking for.
Let's be clear, HOTYH: JB's DNA was found in the blood--it was hers [source requested], after all--and we don't know about the longjohns because the technician who demonstrated the technique said that the test filters out the victim's DNA and any other DNA that doesn't match the sample they are looking to match[source requested]. THAT, among other reasons, is precisely why Touch DNA testing is meant to be used only in a limited capacity.
Moreover, you often say it yourself: it wouldn't be any surprise to find DNA from JB or PR or JR on her. You're right; it wouldn't, which is why they probably wouldn't mention it even if they did (unless it was semen or blood). See, that's why I'm always after you about your trust in the media, because the media is very untrustworthy. You could fill libraries with you don't find in them. And what they DON'T report is often as important as what they DO report.
We don't factually know she DIDN'T either. And it certainly wouldn't be any surprise if she did.
But we don't factually know THAT, either. I won't give you any argument that we can infer it. But we can infer a lot of things, many of which upset you, even when they're (IMO) perfectly reasonable. I don't mind inferences. I've said many times lately that we need inferences and imagination to piece it together. I'm just asking for consistency.
I think this shows a certain desperation on the part of RDI. Not even able to concede that JBR's underwear was handled in a criminal act. You're not even worried about credibility, are you?
RDI is not the aggregate hive-mind you make it out to be. I'm fully open to the idea that they could leave their own along with the mystery DNA. And as for that someone not being on the list of tested people, I don't find that so hard to believe.
Simply put, possible but not as likely as direct transfer from its owner.
Maybe. I respect your opinion. But quite frankly, DNA science has too many problems with it for me to say that something is "too remote."