The advanced discussion on use of automatics etc somewhat detracts from the core question of situational awareness and decision making. The roster is not that punishing compared to many loco, however, the decision to hold in turbulent conditions for 2 hrs raises questions. If the crew were fatigued the reliance on automation or missing what's actually happening when buttons are pressed is normal we see it in the sim every day. Failing a catosphrofic failure this looks like a loss of SA and pilot capacity for whatever reason. I very much doubt airline management or bean counters in our industry will take stock of the reasons