It's brief, around 25:15
https://youtube.com/watch?v=nf7XHR3EVHo
If you've been sitting on making a post about your favorite instance, this could be a good opportunity to do so.
Going by our registration applications, a lot of people are learning about the fediverse for the first time and they're excited about the idea. I've really enjoyed reading through them :)
Blocking tor at the firewall level isn't difficult. Anything with packet inspection can do it.
Edit: I've looked into this some more and you're kinda right. It's SSL and with very little to give it away except talking to exit nodes. Most of the systems I'm looking at are just discerning it from IP, the few exceptions require SSL MITM, which I also wouldn't put by the government.