This is accurate. HOWEVER being hostile to your OS can result in problems. If google REALLY wanted to do something, they could build in a form of adblocking into the OS layer itself. They can also keep that up to date via app updates from their side. Its definitely a battle, but facebook analytics is well documented by adblock communities and google keeping that list in the OS would be a possibility.

Having said that, google has no intention of waging war against facebook. They have an understanding already.