I believe so too.
In addition, I vaguely remember something about the acquisition of WhatsApp by Facebook to be only approved under condition that exactly this kind of data sharing would not happen.
Although I have my doubts about it happening soon, because the immediate impact it would have on real everyday life could by rather disastrous initially (something Facebook no doubt is aware of), the EU should probably declare/certify Facebook as a rogue/criminal organization. I just can't see it any other way, with Facebook's blatant disregard for anything but its own greedy interests.
If Facebook keeps pushing their "luck" like this, it should simply have all its assets on EU soil frozen. If eventually rules a criminal organization, confiscated too. It would be very sad and unfortunate for any EU citizens working for the company, who no doubt have no say in Facebook's criminal enterprise. But the current status quo is becoming completely unacceptable.
History has plenty of lessons, about criminal organizations rising to (hard to defeat levels of) power. In many cases more than anything because both societies and governments/authorities failed to respond appropriately in time, when they still had a fair chance containing those (with far less effort).
All that is even without opening the can of worms that is the access US government agencies have to all of Facebook's data.