"From 2 h 10 min 05 , the autopilot then auto-thrust disengaged and the PF said "I have the controls". The airplane began to roll to the right and the PF made a left nose-up input. The stall warning sounded twice in a row."
...and because of this the PF followed standard (low altitude) stall procedure, setting power to full and raising the nose somewhat?
There is no timeline quoted her. The Stall warning might have been the first indication that the PF had that something was amiss.