Facebook is awful in numerous ways but this article is misleading. FBs argument is entirely correct. The problem is of course that this is not the issue with Facebook.

Facebook is like a stalker. Even if he only uses public information, like following you in the street and sitting down next to you in a cafe to listen in on your conversations, it’s still creepy, and it is not expected, even if you have the audacity to walk about and talk to people in cafes.