I liked this analysis. The one item that is glossed over is that if the Texas power grid was connected to the rest of the United States, then additional supply could be purchased from outside Texas. That would keep the lights on as energy usage doesn't spike across the entire United States all at once.
Since politicians in Texas chose to keep the electric grid separate, the wide spread outages are much more likely to happen. I thought the analysis on voters having wrong incentives was interesting, but also really lacked any type of solution.