The cockpit can be simplified.
Some people seem to forget really how shocking bloggs is. Generally, the 5428 project is staffed by 2FTS people who haven't seen a real ab-initio bloggs in forever. The "aviation academy" will fill the plane full of less than ideal candidates left of the bell curve. The students they get into 2FTS already know how to fly aircraft somewhat...stick goes up, plane goes up. Don't pull the handle between your legs when panicking, etc. We've had guys freeze up on controls and go all kinds of crazy in the CT4 cockpit over the years....give that guy 1500hp and an ejection seat!
Switzerland seems to be the model that everybody talks about with PC21. One trainer, then straight into f18. But these guys already have been flying GA aircraft (to CPL standard?) for some years before starting PC21. It's not ab-initio...it's a conversion.
I think they'll make it work, but it won't have the efficiency promised.