Google slowly coming back, last night was a warning?

So after a night without Google, it seems like the block is slowly rolling back and people are finally able to access their gmail around the country once again (though, at this moment, Shanghai users are still reporting problems). But why did it happen? According to the Guardian surmises that it was a "warning shot" over Google's "porn filters" (we quotemark that because it seems like Baidu, which has equally lax porn filters, is "safe"). Chinese netizens think it's to distract attention away from the Green Dam. If that's the truth, one can only wonder who's brain child this could've been: distract from controversy over web blocking by blocking the web? Good going.