Genghis
We can also probably infer that the crew, having had fluctuating and differing airspeed indications, did not trust anything they saw on any ASI by the end, even if they had settled down.
Sure. So we are back to my very first question: before discussing how they could have detected/fixed the stall condition, I'd like to understand why they didn't apply the unreliable airspeed procedure (fly pitch/thrust)
in the very first place, which would probably have prevented the stall condition from developing.
As I read it from the few comments of 'bus drivers here, this seems to be the initial human cause of the issue (just after the technical cause associated with pitots malfunction).