Friend of friend opt out removed?

I got an email detailing changes to battle.net Real ID features. Of particular interest to me was the fact that you could now opt out of the Friend of Friend function. I decided to do that today, but the ability to do this has apparently been removed. There needs to be a really good reason for this. I know it wasn't in my interest that this change was made. I would really appreciate it if somebody could explain to me why this was done. i also want it put back in an easily accessible place. This isn't Facebook. It's World of Warcraft. I just want my privacy.