I understood it differently https://bea.aero/en/investigat...
You say the stall was not identified, but the synthetic voice says "stall", I counted, 75 times between 2:10:10.4 and 2:14:21.5 (then it says "pull up" 4 time in 7 seconds before end of recording). You say the captain entered seconds before the crash, but he actually was back at 2:11:42.5, that's 2 minutes 45 seconds before crash.
According to CVR, FDR, graph of parameters, all documented in the link above:
At 2:10:03, autopilot disengages due to unreliable speed reading. At 2:10:07, one of the co-pilots puts the plane to climb. It was not discussed or voluntary, it could have been a stress reaction. Later as the plane lost altitude, the co-pilot indeed kept the plane to climb (erroneously, thinking it would help). Several "dual input" warning can be heard (six times), as the captain tries to level the plane, or even tries to get it go down (to recover speed and stop being stall), but the co-pilot stubbornly (out of stress) keeps the stick to climb, even when the captain gives clear order don't climb.
Excerpt:
2 h 12 min 59,6 SV : dual input
2 h 13 min 22,9 SV : dual input
2 h 13 min 39,7 Climb climb climb climb
2 h 13 min 40,6 But I’ve been at maxi nose-up for a while SV : dual input
2 h 13 min 42,7 (CAPTAIN) no no no don’t climb
2 h 13 min 43,5 so go down SV : dual input