Ethiopian airliner down in Africa

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From the outside, after looking carefully at the Ethiopian crash flight recorder plot:

Systems should nowadays be able to detect faulty AOA sensor (or every other sensor) output automatically by checking whether it is congruent with the set of information available. Flight parameters are not independent of each other.
To be more specific, a correctly detected sudden increase in the AOA can have a limited number of causes:
a) very strong upward winds - very improbable, and if, only possible for a couple of seconds. Anyway, even then there has to be a corresponding spike in upward acceleration to be detected.
b) corresponding increase in longitudinal pitch
c) corresponding hefty decrease in airspeed
As none of those were present, a sensor failure should have been detected, the pilots informed and the sensor input to other systems blocked.
A similar reasoning can be set up for airspeed sensors.

If the pilots had consistently nullified the automatic downwards trim by manual upwards trim, they would have made it. So clearly they did not identify the chain of problems (wrong AOA, MCAS reacting) correctly. The stick shaker certainly didn't help here for a clear analysis.