Apple isn't ceding anything here. They still have your email address, they have the record of your activity on the site you're accessing. They are withholding your email address from the site you're accessing, which is good for your privacy. But you make it sound like they've sacrificed something in doing that.
If google had done this, everybody would be up in arms about how google was further overreaching in their goal to gain complete control of the internet and are preventing poor little mom and pop websites from being able to meet their marketing goals.