Personally, I am enjoying using threads. Insta has been my only real social media presence for a while now and there are people in my feed already posting entertaining stuff. It means threads gets a huge headstart.
In addition to this, Meta dwarfs Twitter as an organization both in numbers and technical talent, especially after Musk's immature firing spree. I don't think any emergency service accounts will be getting rate limited on their threads account.
Meta smells blood in the water and is doing what any good mega corporation does and capitalizing on it.