it would really be good if a productive way forward could be identified rather than the continual howling down of alternate ideas
Agreed...so come up with a logical, workable, "safe" (define?) credible idea and the "continual howling down" will stop. Until then the critical comments will continue.
There are avionics manufacturers and beancounters salivating at that thought.
Of course they are....but perhaps not for reasons of safety.