The fact that she was in her dressing gown and before she got dressed is particularly relevant - she could have touched, hugged or kissed Raffaele to say hello/goodbye, moments before putting on her bra - she could even have been holding clothes and underwear whilst they were all in the kitchen. I don't understand why this hasn't been discussed at trial.
It's maddening, isn't it? And if these students passed a joint among themselves that holiday morning, that would be another chance for his DNA to transfer to her fingers moments before she put on her bra.
Was this morning visit before Meredith dressed for her day really never discussed at all in the courtroom vis à vis DNA?