But what whas realy in front of stupid PF's eyes (PFD) ?
We do not know for sure.
However, PNF seems to have been more aware than PF.
What gets me (re the stall) is that they did not respond to the basics, that being the altimeter unwinding at such a rate.
Yes, it's easy to speculate from one's armchair. However, after two and a half years, certain things are obvious.