It remains my tentative view that the stall warning (the one at 2h10min51, perhaps; but mainly the one at 2h1202-17) could well have seemed to indicate that the nose-down inputs were for some reason causing the aeroplane to enter a stall, so discouraging the PF from developing the very inputs which might have led to an exit from the stall.
The one at 2h10min51 happened well over 60 kt, so there it wasn't switching back on from a deactivated state.
The second one was, but here no further information about what happened in the next 1m30s is given at all. Maybe he was discouraged, but maybe he kept pushing ND to no avail. We simply don't know because the report doesn't say.