No. Google would of course be able to decrypt the content (I don't see how they would adopt it otherwise in this universe, google must comply if they get a warr

No. Google would of course be able to decrypt the content (I don't see how they would adopt it otherwise in this universe, google must comply if they get a warrant and they are not willing to fight that), thing is only google would be able to and noone else. And that alone is a huge win.