Obviously, this was necessary for many reasons. Their influence in the design seems as secondary. The IT, automation, etc. seems prevailed. The new concept certainly gone beyond some existing "thresholds". The new concepts appear simply not enough developed to possible scenarios when things go south. AF447 perhaps the best example of this.
The "threshold effect" (AM x FM, S/N ratio analogy) when plane degrades could create dangerous situations even for a designer flying the A/C. Airbus SAS philosophy seems adequate up to a certain threshold of problems.
Above a given threshold i heard important observations from experienced pilots that flew equivalent A/C.
The LOC after a System limitation imho should be addressed very seriously. HF seems to me a result from serious issues in the "interface" design.
I am motivated to address deeper some facts in this thread.
Could you tell me why not:
1) Inform assertively on the limitations being faced by the System
2) Orient crew clearly on proper procedure wrt to
easily detectable UAS