Clumps of hair would probably have hair follicles.
Those can be accurately identified, I believe.
If they had done DNA tests on the hair and it matched, they would have said so. My guess is it’s just hair that’s the same color or appears to match.
Also, if it had follicles, that would mean a lot, and they would have said so. Follicles would mean the hair came out by it’s roots, and could not be just normal hair you’d find on clothes, hairbrush, etc.
If they had found a lot of hair with follicles attached, that would be unusual and incriminating and we’d have heard them mention it, imo.