Placing any part of our crucial Infrastructure on the public internet is begging for them to be hacked, destroyed, or owned over that connection.

Security is cheap and easy when compared to the cost of a failure of these systems. It might be inconvenient to make physical contact with these system or connect them on a private network. How inconvenient is it when they are hacked?

It almost seems that all this was done just so we could waste money undoing it.