Quoted post unavailable.
I think part of it is desperation. There is absolutely nothing the EU can say that will convince the American politicians that privacy and corporations are out of control in the US. Americans might believe it's fine, but Germans are careful about how personal data is handled and who has access to it. Culturally the US and Europe is drifting further apart and from the European side it's very hard to see that the US is…
The EU basically threatening to ban the US from the Internet if they don't play ball on data protection is the sort of thing that might just be loud and forceful enough to get US politicians to actually pass some strong privacy legislation. I'm also happy that US intelligence agencies have been specifically called out - it's like some kind of virtuous inverse of the Five Eyes policy-laundering strategy.
My only complaint is that this ruling is the second-biggest incursion[1] of national borders into what is ostensibly supposed to be an international space. If interpreted a specific way, one might argue that even basic things like messaging systems and web forums need to be totally hosted in the EU, or users need to be siloed off from the US. I'd much rather prefer an international privacy framework that fixes the privacy issues without splintering the Internet, but we tried that with Privacy Shield and the courts shot that down.
[0] More generally, I've found that the gulf in culture between countries is often overstated. Usually because the person overstating it either wants to make the foreign country seem alien and thus interesting, or seem alien and thus dangerous.
[1] First-biggest one being China's Great Firewall