Because pressing buttons on the FCU will save the day... xD. If you are stalling, first you would need new undearwear, then you better make sure the PF is reacting accordingly and as a PM, checking your FMA carefully and ready to take control as an incorrect corrective manoeuver will kill you. If you are worried about the FDs bar in a stall, it’s probably too late..Any onset of the stall in cruise shall be instintive and FDs ignored. Period.