They can't be louder and prouder about it, because they know at one point they'll have to compromise it so that Google own apps can track the user.
There are plenty of important reasons for this project, that plenty of people in the past have already made note of. If the one you're going for, already, is some ad/user tracking platform, you're purposely attempting to narrow the capability of your thinking.
(Disclosure: Google employee disappointed that Hacker News doesn't save the eye-roll emoji.)