That’s true, but in order to build that power grid and decide on engineering compromises, certain assumptions had to be made about Mother Nature, and what the likelihood of what may happen. It wound be unreasonable to assume any system is built with all contingencies in mind.

I don’t know how many times this needs to be said, but the lack of winterization in Texas’s energy supply chain was and is a known issue.

Other comments, which are worth reading, go into detail about how this event isn’t even close to some “all contingencies” handwave. (It got cold. This isn’t aliens invading.)