Very simple answer - they want to know everything you do online. As Google Maps is provided for free, you are the product. Convenience of the product (you) is not a priority whatsoever.
> designers like to say that users are always right?
It's just smoke and mirrors. Unfortunately IT breeds a number of people who have ignorant position they have the right to tell people how they should interact, conveniently forgetting the service will be used by all groups of people, not just IT geeks.