Except, wind lost generation capacity in the cold, just as all other forms of energy generation did.

Is it possible that warming temperatures in the oceans weren't considered to be an issue when we first started seeing arctic air being blown further south by the jetstream due to a changing climate from anthropogenic carbon sources? Possibly. There are certainly mitigation mechanisms they could have invested in. If the public heard their taxpayer dollars or utility fees were being wasted on winterizing efforts in notoroiously hot Texas, even if there were responsible decision-makers, their hands were tied at risk of being shamed for wasteful spending in the court of public opinion.

It is still a shame that they're left out in the cold, so to speak. Hopefully they can come up with more sensible remedies, if not out of a change of ideology, perhaps a sense of practicality?