Originally Posted by
A and C
If the MCAS system failures resulted from an unknown and unintended flaw in the software it is hardly surprising that the simulators had not been programmed with this unknown and unintended flaw.
Yes, but that's not the issue they found with the simulators. The issue they found was that it was too easy to move the trim wheels manually in the simulator.
That is a problem regardless of the reason causing you to use the manual trim wheels, and it's not just MCAS that can get you in this situation.