Unfortunately, I'm not entirely sure this is true. Especially since our grid is so out of date. For instance, one attack in San Jose back in 2014 by one person

Unfortunately, I'm not entirely sure this is true. Especially since our grid is so out of date. For instance, one attack in San Jose back in 2014 by one person with a rifle almost took down northern California. There isn't a lot that having distributed power generation will do if your distribution system is burning to the ground. I mean, if one dude with a rifle can take down an entire substation, imagine what a couple cruise missiles in a time of war could do. However, I imagine that rooftop solar and municipal batteries would do a lot to encourage a more modern power distribution system with micro-grids and battery based peaking.