I don't understand what "advanced users" have to do about that, it's about privacy and owning your data, do you think less savvy internet users should just let Google siphon their data? If anything they're the one who most benefit from this change since they're less likely to understand what data they're sharing exactly and implement countermeasures client-side.
>so most users will learn to quickly accept whatever mumbo-jumbo they are presented with -- without reading it at all.
That's because of the dark patterns I talk about above. Given clear "I accept/I refuse" controls it wouldn't be any slower or difficult to quickly dismiss the dialog -- without reading it at all.
But of course Google doesn't want you to do that so they make it as hard as they can to find the "I refuse" control, leaving you with a cumbersome UI where you're tempted to click "I accept" to get it over with.