Rananim
On the traces for the Elevators and the THS, shown is the THS remaining in position at -3 degrees during the fatal climb. At the Top of the climb, the airframe STALLED, and it was at this point the THS started to lumber full NU. This migration was caused by the demand of the Pilot and the a/c's low airspeed.
At this point, well into the LOC, the Pilot would probably have selected more elevator and more THS TRIM, if available. He had applied TOGA, and was holding the stick back full. This isn't consistent with a Pilot who would be looking for ND TRIM. It may have everything to do with why no one found NOSE DOWN.
A belabored point, but the fatal accident happened well in advance of the STALL. That is the issue. The answer to the crash is in the a/c layout, the controls management, automatique, and the Pilot's responsibilities at the loss of NORMAL LAW. IMHO.
Taking sides is madness. That way lies BAU.