Censorship and content warnings (regardless of how arbitrary they may seem) are not even remotely the same thing. Even though you or I may feel that two females raising a child isn't a big deal, there are people who seriously object. But what is it with .'ers and these misleading headlines. Someone always calls it out instantly, but then again, I guess that means someone always comments.
Personally, I don't think this is that bad. In fact, I think it would be kind of neat if there were standards set up for classification. All this would be background info that people would provide themselves (initially, with checks in place to fix fake info, and with people scouring the web for those who don't care to provide), only to be accessed by any given "parental blocking" type software. Let it be there, but keep it out of my face unless/until I care. As much as I tend to find ratings (especially game ones) are absolutely useless, when there is more content than any one person could sift through in a lifetime, but potentially stumble upon any of it at any time, some form of guideline would certainly be helpful.
Either way, this is a company that has a choice in who to advertise with. You can argue that Google is too big and ingrained in the current structure of the web to take too many liberties with this sort of thing, but you don't ever hear anyone crying for 4chan now do you?
