That's what this type of questioning does. On several levels. I would be very surprised if some legal assistant in AT"s office doesn't check in here (and on reddit, etc) almost every day. Further, the victims themselves may end up learning that they're being questioned and discredited online (by misstatements, no less).
It's a time for empathy. I hope they don't have to testify or if they do, that's way into the trial, WAY after the other stuff (which the Defense will not want out there for weeks) has been talked about. If I were Thompson, I wouldn't call them (but I might call one of the other people who showed up - IF those persons indicated willingness to testify).
Indeed, one of the interesting points of pre-trial will be the witness list. The State does *not* have to call either of the living victims. They can put them on the list, but not call them. And if I were Thompson, I'd start with the coldest, hardest facts - so that a few weeks (or many weeks) later, the jury will understand why the victims are uncertain, still traumatized. Indeed, some of what those two witnesses might say about the crime scene would chill the blood of any warm-hearted human.
If the Defense calls them as hostile witnesses, as a juror, I'd be folding my arms and wondering about that. It's a move that can really backfire. I can't think of a single thing that either roommate would be needed to attest to for the State. The only reason the Defense would call them would be to make it look like some information was overlooked/confusing/possibly contradictory (because the women are traumatized - which will be very clear). I'd respond vigorously with expert testimony, not cross-examination. Get rebuttal witnesses to testify about PTSD. The jury will be grateful - as they'll be suffering from it themselves, by then. Most of you have probably never been an autopsy nor seen complete autopsy photo dossiers. Almost certainly, none of the jurors (pulled from Latah County's approximate 28,000 adults) will have seen any and certainly will NOT have seen these particular autopsy photos. The description that SG gave of the wounds was pretty specific - and yet, we haven't discussed it much here (only in early threads) because it's awful. But it is consistent with someone attempting to use military-style knife techniques, that's for sure (IMO, IME).
And nothing the two victims have to say will change the DNA, the car data, the cell data, the GPS data, the video surveillance data, or potential evidence involving searching for KaBar knives online or buying one. Plus, there are some amazing other witnesses to call in about BK's state of mind (I can think of two professors). Oh, and the footprint (not just shoe) analysis.
IMO. Much speculation about trial above.