You forget that you are not the customer, you are the product. Facebook do not care what functionality you want, beyond what is required to keep you using the product. They care what their paying customers want, and that is access to as much information about the product (you) as possible.
Indeed. Since the post I was replying to purported to be confused at the negative backlash among Facebook members, I engaged on its own terms. I suspect at higher levels Facebook is at least somewhat aware it is acting exploitively.