One of the best techniques to keep an undesired FBW pitch up from bleeding off all your airspeed is to immediately drop a wing and convert pitch-up into turn. The little bus will let you get 67 degrees bank if you hold the stick over, right?
It may be that QZ8501 was doing that but got started too late and bled off too much speed and fell off onto the low wing in a stall.
For someone who flies the little 'bus:
How long do you think it would take to turn off two of the 3 computers if you were surprised by an undesired maneuver? I'm betting that it would be about 15 seconds from initial startle to Alternate Law-and that only if you were really on top of your game.