Sensors fail all the time modern aircraft, people would probably be quite scared knowing how often. After the Airfrance airbus incident they also introduced

Sensors fail all the time modern aircraft, people would probably be quite scared knowing how often. After the Airfrance airbus incident they also introduced a "patch" to protect the aircraft from erroneous pilot actions leading to stalls when indicators are incorrect, those fixes were certainly not indicative of guilt but just another layer to stop pilots making mistakes.