Isn’t the point of our continuously larger grid is that it becomes more and more reliable? It seems we’ve finally come to the end of that road. Off-grid systems are generally considered less reliable albeit much faster to build. If an off-grid system could scale like a utility, the reliability would improve with each added customer, just the way the grid is supposed to work. There would be no need to trade-off flexibility (i.e., less reliability) for speed. You'd get them both in the same system. That’s Consumer Regulated Electricity (CRE).
https://www.utilitydive.com/news/data-centers-flexibility-utilities-speed-to-power/822588/