The recent comments about MCAS reinforce the point that it is very difficult to design a complex system that is safe, effective and reliable, and operates within the limitations of the human-machine interface.
From an entirely different perspective, this
reminds me of the (apocryphal) story of the monkey trap. Once the hand has gripped the food reward, the size of the fist is too large to withdraw from the trap.
MCAS software seems like a clever fix, but may actually be a trap. All kinds of contortions and wriggling, do not solve the underlying physical problem,.
Letting go of the 'easy' software fix may seem painful, but it might be worse to be trapped in a never-ending tug-of-war between physics, regulations and safety.