I actually wouldn’t have been shocked if other countries had helped, and the powers that be may regret enforcing their sovereignty here.

Countries used to enforce this at their borders (for foreign information) because it largely worked. They couldn’t stop 100% of the copies of the book, but they could stop there being enough copies for it to be part of the cultural zeitgeist (most of the time).

Not anymore. The companies don’t have a local HQ to harass, and the information doesn’t flow through infrastructure the government owns. They’ve pretty much entirely lost the ability to control the flow of information, and they’ve largely lost the ability to control its direction either with the fall of major news outlets.

I don’t think they have the support for a China-style great firewall, but I’m not British so maybe I’m wrong.

I think it’s a good thing information is set free, but I see why they tried it. It’s the only politically tenable way they had to try to keep that control.