Users that request their data to be deleted do not have to be online, within the game.
This can happen either on request or when people delete their account.
It is simply not something a game can properly handle, given there can be no game instances online.
If this service would come at all, it will first need something like universe level scripts (non-game scripts running in the cloud, completely standalone from game servers).
I never implied that you are not allowed to automate it, you completely misunderstood the statement.
I said this can’t be delegated to the game because of the reasons I mentioned above, this should be handled by a singular service, which is always online.