Jim, some of that might be due to the prevalence of glass cockpits, since the old selective radial scan, where you had to move your head to encompass all the analogue instrument scattered across the cockpit, can now be replaced by a 'big picture' type scan where the PFD only requires a fixed gaze at the attitude with the remainder being picked up on peripheral vision.
Agree, but surely 'move your head' is a typing error. Instrument scan should be eye movements only whether radial or orbital, head moves can start vestibular canal upsets; the occasional glance over to Ts & Ps on a large cockpit panel should be the only conscious head movement.
Going way OT here from the OP.