I think what this case is saying is that Google only has to "forget" that thing in the EU. It's free to keep that information on its servers in Asia and the US

I think what this case is saying is that Google only has to "forget" that thing in the EU. It's free to keep that information on its servers in Asia and the US for instance. In fact, we can imagine actual legal situations in places like Singapore or the US where that data has to remain available. So I think this just clarifies that it doesn't have to work for every server everywhere in the world.