Will Fraser;
it is inconceivable that a major Manufacturer would ignore the need to provide handling cues to a blind FD.
That would be manufacturer
s,
plural, because no transport, McD-D, Boeing, Lockheed or Airbus that I've flown provides this capability, nor does the historical accident record indicate the requirement, nor does an occurence necessarily prove the need.
We have yet to see if there is a design issue with the ISIS.
Re your suggestion to Rubik, fully-gimballed gyros still topple.