Commercial pilots are also extremely good at dealing with edge cases you wouldn't design an autonomous system for no matter how solid the infrastructure, like deciding the Hudson river is a good place to ditch

And their cost relative to other operational costs is so low there isn't even any pushback on regulations regarding there being two of them.

Pilot cost isn't low. The airline industry is very much looking for ways to reduce crews, whether that's going to single pilot operations (long term) or reduced crew operations (short term).

RCO is very much "pushback on regulations".