I'm not sure this is effecting Facebook as much as they are making out.

People are still using Facebook, posting pictures, tagging people they know, checking into locations, posting what they buy and so on.

Still pently of information to track and sell to advertisers.

Google certainly won't copy Apple here because being able to track the hell out of you is very important for their own business model. Apple can afford that because they sell hardware and services but not data.

Whats iconic is Google themselves have been using bluetooth for years to track your location. This still doesnt limit Google themselves using it, just third party apps. hence why it wont affect their ad business.

This is a win win for Google, slow down competition and give the illusion of privacy to users.