The fact that the crew slowed down to less than 107 kt (the calculated Vmin elsewhere in the report) indicates to me that perhaps the computed minimum speeds were less than the true values
As you say, these speeds come from the FACs, which seem (?) to be fed "frozen" AoA values, hence why they maybe never entered the Normal Law Protections. One would hope that the tables to which you refer would have been referred to by the crew, and upon seeing missing or low Alpha speeds, knocked the test on the head.
The "Stall" Warning seems to be issued by the ADIRUs (3 of), in turn from the AoA probes (3 of). The "Stall" warning should not be heard in Normal Law, but that does not mean it is inhibited... just it should never get there (?) The fact that a "Stall" warning did go off can only mean (?) an AoA probe (presume the one not on the FDR trace) was working and got to the Stall limit AoA?
What happens if you let go of the stick with full power and 11.2deg negative stabiliser?
Nose up
However, as posted above, essentially full fwd stick was held, and full down elevator achieved and held.
Lots more to run on this one...
NoD