BOAC. Yes. In this case, the instrumentation is not known. Dani (perhaps by mistake) condemns the plane to doom with seven miles to recover. Earlier I said recovery was possible much lower, and you called me a fool.
This was a hybrid Stall, the aircraft had tantalizingly good horizontal speed, and was perhaps close to re loading the wings, (more than just "partially"), but the Descent promised a long carefully controlled pull up to effect the solution.
Who knows what velocity was in store, but when the goose is fully cooked anyway.........
You emphasize instruments, but others adamantly demand Pitch and Power.
You may be confusing "conclusion bias" with Solution bias. The crew here were fully stuck on conclusions, and weren't even close to a solution. It is hard to be patient when you are about to die. Training crews to "Operate the machine".....Wait, let me be precise...."Drive the Machine", to the exclusion of ad hoc and intuitive mind power is (will always) cause tragedies.