That's amazing, I hope all journalists and government alerts have their own instance. It's way better than a blog because it can be updated so easily, they're used to twitter and their alerts and it's open to see while they control everything about it. Happy to see it.
Edit: Cool graphic too: https://www.bbc.co.uk/rd/sites/50335ff370b5c262af000004/assets/64c7859d06d63e5047000311/fediverse-overview-16x9.png