Unless I have missed something, the pathology report merely records the cause of death. It does not comment on the presence or lack of other injuries so I do not see how any conclusions could be made as to whether in the absence of fire the occupants could have removed themselves. The comment about nomex Therefore seems speculative as we do not know if hey were conscious or injured.
I would rather look a bit of a **** and wear nomex bladder tanks or not. The other question is helmets and belt cutters.