It will incentivize the bureaucracy to properly follow the rules around notifying the public about proposed regulations when doing this next time. It's a good thing for regulations to go through that process in order to politically help balance the power of the unitary executive. This rule can and likely will pass again with proper procedure. If you think that this administration has seized powers it should not have, you should appreciate that this ruling upholds at least a minor constraint on it.

Ironically it is still on the front page with a lot of people defending big businesses (https://news.ycombinator.com/item?id=44529061). I do hope they don't mind having to jump through hoops to cancel their subscriptions, or they are part of the propaganda (which could be a real thing nowadays).

I am critical of the EU's approach, but say what you will, they are at least voting on it in a legislative setting rather than trying to staple it to the coattails of the fringes of their remit.

It is for Congress to act on this, simple as that.