Very interesting article. I think the author makes a compelling point about the vulnerability of infrastructure.
To be honest I wouldn't be surprised that in an actual unlimited war, between two major developed nations nothing will actually continue to function. None of the systems have ever been actually tested and still make assumptions about the rest of the infrastructure. I also don't believe that simplicity can fix this, everything already has deep built-in assumptions about everything else, which makes any replacement a daunting task.
To be honest I wouldn't be surprised that in an actual unlimited war, between two major developed nations nothing will actually continue to function. None of the systems have ever been actually tested and still make assumptions about the rest of the infrastructure. I also don't believe that simplicity can fix this, everything already has deep built-in assumptions about everything else, which makes any replacement a daunting task.