ekw
if I had over 30000 feet below me, I would not fight a downdraft into a stall or anywhere near a stall.
in the AIM, you can find thunderstorm do's and don'ts. And if you have to RIDE THE WAVES it is what you do and don't hold altitude too closely.
Now, the plane may have done something different on its own, perhaps even do to ''garbage'' information making a computer conclude the wrong thing and act in the wrong way (over simplification here).