Yeah I mean in this case at this time, it clearly does not matter what she was wearing, beyond a description of her. BUT I must say that an analysis of what the victim was wearing at the time of their disappearance often does matter.
I think at the beginning some people were wondering if perhaps she was not out that day to show a home based upon her outfit, which several realtors who work in the south said would be appropriate.
I think it is ok to discuss what the victim was wearing because often that goes to their state of mind or where they may have been going. Like if I leave the house in my sneakers and t-shirt, then searching the place I like to hike would make more sense than the tea room at the Plaza Hotel.