What ever the scale of automation or not, itīs up to the crews to check and manage the system. The whole idea of automatic flight is to give the pilots less of a work load and more time to concentrate on scaning the instruments. Now, if that goes to pot and the scaning goes out of the window...well, your guess is, as good as mine to where the blame might fall? Now, not undestanding how the automation works is another kettle of fish!!!