"rolling blackout" is a very specific term used when grids are overloaded (usually when not enough generation is happening), which means that the operator is intentionally cutting power to some areas to save on energy. The areas keep changing (such that each area is out of power for just a few hours at a time), hence the name "rolling".
The OP said that the eastern storm is proof the grid is not resilient enough because of rolling blackouts, which I find hard to believe without some more sources/reasoning.
I am not sure why you're attacking me, instead of what I'm saying, but you can't use "rolling blackout" as a description for "some power lines were downed by the wind". Rolling blackouts are bad, but they are initiated by the power companies when the grid is under stress from an imbalance between production and consumption. Lines affected by trees and other natural elements have nothing to do with that, and these natural occurrences won't change if we switch to 100% electric or not.
The OP said that the eastern storm is proof the grid is not resilient enough because of rolling blackouts, which I find hard to believe without some more sources/reasoning.