You originally called someone a redditor making a cringe joke for highlighting a serious historical problem. It wasn't clear to me that it was a joke at all, but my impression is that it seemed clear to you that it was a joke.

What if that person has also lived in Texas for 30 years? And what if they had a family member that died during that power grid failure in 2021? I personally would find it quite difficult to communicate to them the nuance of a local problem and a state-wide problem when the end result is the same: no power.

In the future, you might consider approaching an interaction online with more balanced judgement.

Edit: Actually, looking back at the original comment, it's not even clear they're talking about the Texas power outage in 2021. All they said was "Hope they have ample backup power." Seems like a reasonable thing to hope for what might be critical infrastructure.