If you are a European citizen then you have whatever are the rights granted you by your country and wider EU law to request information about other citizens at the moment in time that you make the enquiry.

It might be that this grants you access to past acts, and it might be that this does not grant you access to past acts. And in the vast majority of cases the person you are requesting info about doesn't determine what you can access, the law does.

The law already does dictate whether past acts are relevant to you or not.

It's the timeliness that is important here, not who says what. Time allows people to move on with their lives and put some aspects of their past behind them (where it's the right thing to do for the rest of society).

Google failed here, because they accessed information at the time they were able to do so, but then permanently stored it and made it available. The judgement tells Google not to do this (the make available step), so that the enquirer needs to go to the source of the data and ask "at that moment in time", and thus whatever laws apply to deny or grant you this access is applied. That is all... your rights are unaffected and all the person being enquired about did is say "you should go back to the source to ask this".

No, but I get to decide what my government allows a foreign company to do with data about me.

In this case, I'm glad the law gives me more protection from a US company than the US law gives its own citizens.