I just retired after a long career flying mostly long-haul international routes. I’ve had complete primary display failures in both a 747-400 and a 787, despite the fact that it’s “not supposed to happen”. Both times it required two pilots working as a team, one flying the aircraft manually, while the other was trying to solve the problem. These problems caused loss of autopilot, throttles, all nav displays, navigation and required manually reentering data and an extended recovery time to complete. One pilot could not possibly have done the job. In addition, one occurred at high latitude where there was no satellite coverage for a “ground operator” and was out of all audio communication range. Single pilot operations are just a foolish idea and I hope that pilots world-wide will simply shut the system down if they ever try to force the issue.