I don't think that is the main problem.
I think the problem is that a modern airline pilot never has the chance to practise his skills often enough to remain good at them, plus the sort of people who are good at these things is rarely the sort of person who copes well with endless tedium waiting for something to happen.
I heard, possibly on here, a really good idea that would unfortunately be very hard to keep safe and effective.
Make the two sides of the cockpit selectively independent, and run one side at a time in the cruise in computer game mode.
Each take an hour at a time flying sim emergencies all flight.
That would produce decent involved experienced pilots.