Flying is the responsibility of the pilots. Navigating their magnificent flying machine is nowadays done by gadgets at their disposal. How they manage it is part of their profession, not the regulators, or ATC for that matter.
After all, it is a profession, no? Using V/S, VNAV, LvlChange , HDG Sel, etc are only tools to facilitate us.
Imagine us pilots checking when and how ATC has us on which screen, and in what mode? Are we controlling when we are handed over to the next controller, and how he does it?
Or, are we informed if there is a back up generator ready and available at Brussels Belgo Control?
This robotic manipulation of aircraft is taking over from common sense.
Worries me.