ME pilots do not need to fly at bank angles in excess of 30 deg AoB in the aircraft at all. If necessary, they can do that in the simulator.
I was thinking of aircraft handling, not specifically formation flying. Confidence is born and nurtured in the aircraft itself. I know that the unfortunate Air France pilots had flown their simulator in extreme conditions, it's part of the Airbus programme used by Air France which trains adequately, but not to excellence and for routine operations, not combat operations.