alt Hacker Newsthink about a grid responding to demand. The old model (like the titanic) had a remote manager phoning the site lead who phoned the control room who phoned the engineering room.
Remote management has clear benefits, don’t be obtuse. I totally agree on the security risks, but the benefits are obvious.
I'm not seeing why it has to be connected to the internet. Make it a private, air-gapped intranet for all (or most) of the benefits of being "connected", but with no entry point for someone sitting on another continent to turn off the water.