My understanding is that to trigger the pre-mod MCAS without an inop AOA sensor on the FCC in use, one would have to produce an upset and depart well beyond the normal operating envelope. That would be pretty bad in any transport category airplane. However with a faulty sensor (pre-mod) the appropriate procedures should not cause a loss of the airplane.
No we are talking flying - not a pre or post mod.
The aircraft could not be approved without the MCAS.
They needed to increase the design limits to meet certification.
Now they massively decrease MCAS.
?? How can it meet certification?
Forget now 1 or 2 AoA sensors.