In answer to Lemain:
I am just trying to understand what happened, and what lessons can be learned. I did link to an article echoing a voice asking to ground the planes, but that's not an endorsement of that opinion.
If (that's far from evident, at least to me) the THS remained nose up 13° despite the pilot commanding a nose down circa 13000 ft due to a characteristic of the flight law then active, then I think pilots on the type should be trained to trim manually in order to get out of stall in that flight law, rather sooner than later. Anyway, if that's true, I expect many if not most pilots on the type have read the BEA report and came to that conclusion by themselves.
Full disclosure: I'm not a pilot, I am an engineer working on security (not safety) critical systems.