Well if they got FB fined for tracking users and exploiting users web behavior for ad purposes and for other data minning purposes, i assume Google will be the next in the line who will got fined big time as well.
IMO, no matter how EU fined FB or Google, the fact still remains that even if these two loose their tracking ability to make their ad posting business more profitable, these two will simply use their ad features to throw users different ads eventho its not relevant to the users while using the FB app or chrome.
--Same <mod edit> in other words... In order to secure user data in FB, the EU must demand total Ad removal from FB app so there's no need or no sense of tracking their users anymore because it would be a waste of time doing it and would get nothing about it.
But im sure it wont happen bcoz and FB will fight EU to their last breath, with out targeted ads in FB or google, they loose their profitability since they earn from ads thru it.