@lateott
No, it was genuine - The stall warning is based only on AoA which was valid (except later when the speed dropped below 60kts)
>> 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. <<
With a nose up input at this flightlevel with a heavy A/C you are approaching the critical AoA really quick. And with the roll the load-factor increased leading to reaching the critical AoA even faster