I wonder what would happen if FB and Google went a step further and decided to give Apple the Windows Phone (or Huawei) treatment, by pulling all their apps from the App Store, citing these changes as the reason they can't support Apple's platform. I'm not sure the majority of iOS devices users would be happy with any of the involved parties, and that includes Apple.
On the subject, I would really prefer this to be an option as well, even with the default being not the current default, however I see that there is a general trend of removing a lot of fine tuning knobs in apps (android or otherwise) in the sake of reducing complexity for the end-user.