I don't understand: one click opt-out is ok for Google but not for Facebook's product launches?
The issue with Facebook's changes to privacy was not that they are opt-out, but that they were opt-out and significantly impacted user privacy. Opt-out services on their own may be annoying, but they aren't a cause for alarm unless it hurts the user.
Facebook at least pretends to care about privacy and then screws the user, whereas Google just skips to step B