Human pilots actually do get upgrades – Crew Resource Management (CRM) is one example which was developed as a result of some Very Bad accidents, and is now required by the FAA. It was a very important development in aviation safety.
Although according to the CRM wikipedia article, Air France 447 pilots had seemingly abandoned CRM:
The men are utterly failing to engage in an important process known as crew resource management, or CRM. They are failing, essentially, to cooperate. It is not clear to either one of them who is responsible for what, and who is doing what.
This stuff is fascinating – lots of questions about how we interact with our technology and each other.
