KenV
I might be less knowledgeable than you are but I'm not making broad assumptions in these questions. It remains to be determined whether disclosure of the MCAS subsystem would or would not have made a substantial difference in this crash. Yeah, I don't claim expertise in type certification processes but then, I'm also not asserting clairvoyance as to what the CVR - and probable cause analysis of the AIB - will show.
As to differences in Boeing and Airbus, this still begs the question. You didn't get any sense from statements by officials of pilots' unions that references to an "average pilot" were a bit objectionable?
As for the definition itself, read my post and see if this time you can spot where I said this point is up to regulators... ( hint, I didn't).
It's still a valid question: how is this baseline defined, based on what data, and with what level of transparency.