Preparation for rare but devastating events is a hard sell when its not likely to happen on my watch and it is very expensive to prepare for.
The power grid is just the start of our worries. Will we even be able to run our computerized combines and other food production infrastructure? Can our water and sewage infrastructure function after a good solar flair?
I'm afraid our systems have become too complex to fall back to simpler modes of operation after EMP regardless of the source if strong enough to fry chips.