Tivo'ed the ep and finally saw last night. I thought it was awesome for a basically non-special effects "budget saver", which is (and has been) also correctly referred to as a "filler."
As to the naked Phlox vs T'Pol, this is obviously far different, not so much from an objective, but a subjective perspective. Since arguing such things tends to degrade into the same kind of "court room" type arguing that occurs when everyone know the guy raped, sodomized, and killed his victim, but there's no objective proof, so he walks, I will avoild arguing the point.
Let me simply say that, if it wasn't a lot more sexually provocative to show T'Pol's bare back, implying, as they cut away from the scene in the teaser, that her clothes would continue to fall farther and we'd see more in the actual ep, than the bare chest and paunchy stomach of Phlox, then they would have just as quickly showed that scene as "eye candy" in the teaser for this ep as they did the T'Pol scene in the previous ep.
That having been said, I would like to add that I felt the ep with T'Pol disrobing was handled fairly well, not showing anything more and felt the ep therefore remained, "marginally" ok for family viewing, although not for pre-teen children, which, IMHO, Star Trek should do. In any case, I liked that ep a lot and was pleased they didn't go any farther with the "sex sells" thing.
On to this ep. T'Pol told Phlox at the end, when everyone was awake, that Tucker told her that it would take a long time to re-align the engines, but that Phlox had done a helluva job. This pretty much nails down the idea that he did indeed start the warp engines, causing the problem with which Trip would now have to deal.
It was when T'Pol couldn't even find things in engineering, couldn't even push a button at Phlox's command, etc, that I pretty much determined that this had to be because she was just another hallucination for which Phlox's mind had to come up with some reason for her not being able to physically help. On the other hand, "she" was a good "self sounding board" when he was trying to reason why they weren't clear of the anomally, what he should do to get them out, and even his own psyche trying to rationalize that the sounds and "Xindi" he was seeing was just an illusion, and even talking him out of putting himself to sleep because she was not competent to run things.
Very entertaining psychological drama, overall, IMHO.
Oh yeah, and I missed the tie in with the Twilight Zone in Phlox's seeing something out the view port, but when he said "I'm a physician, not an engineer!", I paused Tivo and explained to my daughter the bazillion times that McCoy, in TOS, said, "I'm a doctor, not an engineer!" whenever they needed him to help out with something in engineering. Cute!