No, this was what was invalidated I think you missed the point. They're arguing they don't care what the EU thinks. If some EU court invalidates some EU specif

No, this was what was invalidated I think you missed the point. They're arguing they don't care what the EU thinks. If some EU court invalidates some EU specific thing they didn't care about previously, they still don't care about it afterwards. Enforcement of this law will take sometime Like, forever? How many US firms has the EU taken to court in the USA and won, over their cookie law? EU cannot enforce these laws on US firms, only EU firms, but even then, such things are basically never actually enforced except for political reasons. So they might try and cause trouble to Google and Facebook or Apple, because they're big sources of money. Everyone else will just ignore it or go through some compliance motions if they feel like it. As always with the EU there are regulations everywhere and they don't mean anything. As you state yourself, "necessary" data can continue to move. This is the same as saying "we'll make it up as we go along".