You are correct. I mis-wrote the V/m as V/m^2. My mistake.

What controls are on those circuits and how are they protected? Are any of these control systems vulnerable electronics?

The problem is that the EMP Commission's recommendations have not been implemented. It is likely that they will not until a crisis forces the issue. Yes, there is a cost. It is a cost that the Power Industry does not want to bear. The Government and Industry Controls do not have any real enforcement power to force the issue.