LW50:
Murphy, as you broke that down, you end up part way through the sequence with this progression:
"I put the nose down, I am now stalled again, I need to bring the nose back up" which is a valid response in inverted flight.
Interesting point, could the pilots have been -that- disoriented?
(I have no knowledge/opinion either way.)
If I parsed the narrative correctly (would much rather look at the DFR data) the stall warning returned when the speeds were again deemed valid by the system.