The BEA does address the issue with the stall warning inhibition.
Originally Posted by BEA Final Report (English version) p.190
"A few seconds after the transition to alternate law, the stall warning sounded briefly, even though the PF’s inputs should have made this warning sound for several seconds. The reason for this is the drop in the measured airspeeds, some of which fell temporarily to below 60 kt, while the angle of attack reached 40°. Furthermore, the drop in measured airspeeds to values of less than 60 kt during the stall caused the repeated activation and deactivation of the warning which may have made it considerably more difficult for the Captain to effectively analyse the situation on his return to the cockpit."
The presentation also stated that while recovery at a later stage *may* have been possible if the crew had advanced handling training, the fact that none of them did rendered a recovery very unlikely.
Quite some time ago I stated a belief that the inhibition of the stall warning below a certain speed was very unlikely to be Airbus-specific. This is something I still believe quite strongly.