Is it reasonably to be expected that professional flight crew will recognise and compensate for autothrust malfunction which (if not corrected) results in airspeed decaying below that needed to sustain flight?
It is not <<
reasonably to be expected >>... it is
a basic requirement.
Simple question. Simple answer.
True. Hopefully I've given it
NoD
Yes - thanks. I suspect it's also a "basic requirement" that a train driver should not blithely ignore a red light. If he does, a crash is likely to follow.
It is possible (at risk of unintended side effects) to build in safety mechanisms that protect against even the most fundamental operator errors (I think that has been done, at massive cost, in some cases). Whether the incremental reduction in risk justifies the cost is debatable.