Because google is still tracking you. They are just getting rid of third party cookies being able to follow you on the web. They have fingerprinted the chrome browser itself, so every instance of it is unique to the individual using it (or their hardware) with the intent of continuing to track you while making it difficult for other third parties to do the same. And they're using deceptive language to make it seem like that's not what's happening. That language may not work on everyone but it will work on the vast majority especially of younger gen people who just aren't as tech savvy despite how much tech is integrated into their lives.