This does not surprise me. There is very little transparency, or privacy, for that matter when it comes to Facebook's policies.
Started that way right from the beginning. This shitstorm was a looong time coming.
Right from the beginning indeed. Facebook early Termns & Conditions & Policies back in 2007 said that any personal information submitted through the website was given to Facebook in a way that they became owners of such data and they could use it as they saw fit.