That's brilliant!! It placates those few that are worried about getting their personal data out of Google whilst the majority leave theirs in there.
Correct me if I'm wrong (you will won't you?) but that is the only Google product/help page that doesn't look like a page from Google. Everything about it spells hippy, commie, open-source weirdo. Not the kind of site that a respectable cubicle dweller should be on.
It's genius. Provide a help page that mainstream users will be scared of. Hats off.
From Google's point of view, it doesn't matter if individual users have access to their own data. As long as they're the only ones with access to everyone's data.