> Your utility will post a highly localized service outage that might only affect 1 block of a city or less to their world facing twitter feed? And not simply alert customers via their phone on file as they've done for me forever?

It doesn't match your very contrived example specifically, but yes essential services in my major metropolitan area provide more useful and timely information via twitter/X than other sources. People don't or can't register for updates from the city or county, so government organizations have no means of publishing information for public consumption other than social media, and twitter was the de facto standard.

Also, many local schools, clubs, etc. used it as their "official" source for updates for years.

You are definitely out of the loop if you can't access it, and places are glacially slow to change.