Incorrect. If the court was saying to remove the page in question, then that would be forgetting things which are true.
However, the court action is directed at the association created by Google between a particular person and a page.
There is no functional difference; if you can't remember what you forgot, then you forgot it. The data might be out there someplace, but if you can't find it, then you can't make use of it.
No, it's about requiring search engines to stop returning irrelevant items about a person when asked for relevant items,
As the person initiating the search, I decide what is relevant.
Without this law, search engines could report results which are false and do harm with impunity.
No, no they couldn't, because you'd click on the links and you'd see the actual result. Search engines can only report what is there; they might report on it incorrectly, but you can always check up on them.