Where does it say it does not? I found opposite statement in Data Access: "Internal access to data (e.g., by employees) is limited ... to only those with a business need to access it."

Under "Data Collected by Google Analytics":

> Where customers use Google Analytics Advertising Features, Google advertising cookies are collected and used to enable features like Remarketing on the Google Display Network.

If you just use GA on a site, without ads, none of the data is funneled into Ad targeting for the user.