No. This is not the autopilot, it is a separate independent system that operates only when AP is off. The issues are a- that MCAS depends on having valid AOA data when there are only two AOA sensors and therefore no way to get a consensus “vote” in the event of a failure but far more importantly b- Boeing did not provide 737 MAX pilots with any information whatsoever about this MCAS system and what to do in the event of an AOA failure triggering invalid MCAS behavior.