While a lot of shitty things happened regarding ERCOT and that freeze (and ESPECIALLY the lack of response to prevent the next 2 freeze emergencies), Snovid was a perfect storm. And again a lot of the issues were from transmission problems when lines iced over and tress took out transmission lines.
We’re lucky the 2023 freeze was as short as it was, because it’s impact on the grid was almost as severe even though it was shorter and not nearly as cold. It was an ice event instead of snow, and had a much larger impact on trees and therefore transmission lines. Some people were without power for 3-4 times as long as with the 2021 storm despite it being a much milder event.