The people writing these updates are very obviously not technical and are least one step removed from the actual work being done to fix this.
And that is a good thing. Well, maybe not good. But the last thing you need in a crisis is to pull people away from fixing the problem and make them type up status updates. Admittedly, having tech knowledge would help the writers - a technical incident management team would be better. But ain't nothing wrong with letting the PR folks write up words while the tech folk work on problem solving.
Actual tech write-ups can come later.
To be fair: I want the people who can speak most competently to a problem to be working on it versus writing commentary. Those highly-technical people can shine in the postmortem report.