I mean, lots of local and/or small services announce disruptions on Twitter only. Many of those have separate news/service status pages on WWW, and yet neglects updates of those. Possibly because users without access to Twitter aren't worth informing.

IOW, Twitter still is a social data infrastructure, like road or tap water. Something that the society depends on, that also ain't nobody paying for it, something that only makes sense at-cost max or at a loss.

I think that was always a fundamental problem with Twitter as a for-profit company. Surely it handles a large amounts of important communications, that are also not so exploitable or monetizable, ethically or not, just fundamentally.