So, an extremely unique identifier for tracking purposes, that effectively no one knows exists, and no one knows can be changed at all? With an obscure white paper that allows Google to claim they comply with the law because "they totally offer a way to change that and they even published that information to the web for anyone to find"? Gotcha.
Until we are deployed enough that users don't have a choice...
Now that Google has cornered the market for Internet browsing, they're using that foothold to change how it works to suit their dominance. This is why they are not concerned about per-site tracking that Google Analytics does, as long as THEY as a company have direct browser-based tracking, they no longer need to provide tracking services to other private companies to know what is trending everywhere. This is also probably why they're trying to kill ad blockers and certain browser privacy extensions.... But they won't really matter to Google if everything is done at the browser level to begin with from now on. :/
If they make moves to scale back [free] Google Analytics, which they probably will at some point, it will only highlight this ideal... They may turn to selling their privately collected metrics and qualitative studies to companies after Google Analytics is rendered useless, and then that's unadulterated monopolistic profit for them and shareholders...
Diabolical.