Captain back please
I have the idea that the PM had a very good idea what was going on but for whatever reason he was content to watch as the pilot flying manoeuvered both of them to their deaths. + 100's of others of course.
I think it was a matter of seniority.
Obviously the PM was not exactly content to die, however, I think that he did not have the bottle to avoid it.
All he (PM) could think of was to hope that the Captain came back to save his life.
Sadly his (PM) hope was misguided. It appears that the PF was determined to ignore the PM's opinions regardless of the consequences.