The new privacy controls actually allow me to go in and LOCK DOWN MORE stuff than before and just have more control over many little things than before. But yes, they are encouraging you to be open and the defaults aren’t very private. So they are only half right about saying they are doing it for your benefit.
However, I would bet that even if no one posted private things but still wanted to interact with their friends and Facebook had default privacy locked down. Then new users to Facebook would have a bad experience, or not be as impressed with how “cool” Facebook is at staying connected and then Facebook would loose potential users.
People are going to complain either way. The problem is Facebook has so many features that there are too many privacy controls. So whether Faceook locks down by default or they leave open by default, people are going to complain that it is too much hassle to handle the privacy controls to have the experience the user wants. In the end the complainers (no matter how much or how little they want to share) are just to lazy to do things for themselves.
On another note about the recent interview with the Facebook employee. You’re surprised that something you put on a website is stored on a computer somewhere? It also sounds like they have a good start on internal policy with employees. If you look at someones profile you are prompted to provide a reason. If you’re reason is poor, you can bet you’re about to be fired.