This is really disappointing. They failed to address the very basic privacy requirement given that this billed as privacy tech. Apple tackles this head on when

This is really disappointing. They failed to address the very basic privacy requirement given that this billed as privacy tech. Apple tackles this head on when they say the GUID is per app precisely to ensure users cannot be tracked across apps. This tells you where google's priorities are, not that it was in question before, but it just makes it clearer.