From a certain large Aircraft Manufacturer (begins with B) for Stall / Terrain situations:
* Overboost or “Firewalling” the thrust lever should only be considered during emergency situations when all other available actions have been taken and terrain contact is imminent.
In addition for it's most populous type with a Stall:
DO NOT attempt to change flaps or landing gear configuration until after recovery
I am
not saying the above actions (Firewall TLs, add Flap) are not going to help. I am saying that the immediate use of them at the first sign of trouble
is contrary to various documentation and therefore will not be trained to / expected of a crew
NoD