Most people want some forms of censorship, if only for the simple matter of organizing your content.
That's not censorship, that's filtering. The difference is that filtering allows the user to control what they view, while censorship places that control in the hands of the publisher.
I personally would like to see more changes like this because not everyone on the internet can discern between what they click on...
Blogger already had warning pages appear for adult blogs which had to be dismissed before the user could view the content. Those were sufficient to prevent anyone from viewing content they didn't want to, (and nothing short of constant vigilance is going to stop a kid from viewing content they're interested in.)
All this does is force active adult blogs to migrate to other sites, and take a bunch of inactive ones offline (unless the Internet Archive archives them before then).