What wasn't the point? I said that if the hair was unidentified, they'd say so. What they would not do is blindly speculate to the identity of the contributor, as it weakens the effect of mentioning the hair in the first place. An unidentified hair would mean that it wasn't tested, and belongs to someone who could be the "real killer." They could not make that argument however, because the hair has obviously been tested.
Honest question: How do you think they were able to determine that it was female hair, and has a familial connection to Libby, even though it was found in Abby's hands?
Obviously it was tested, and people are somehow falling for what the defense is trying to do.
As we learned in the LISK case, foreign hair can play a major role even if it doesn't belong to a killer.