It's certainly possible to do tracking without the ability to execute code on the client, and for example Google is probably able to log 99% of your browsing history with this method alone even today.
But it should still very much lower the amount of tracking, as it requires a lot more effort than adding something like Google Analytics to your page. And there's got to be a huge number of pages out there, which don't actually have a real use for analytics. They just included analytics, because it required no more than five clicks to do so and made some pretty graphs appear.
But it should still very much lower the amount of tracking, as it requires a lot more effort than adding something like Google Analytics to your page. And there's got to be a huge number of pages out there, which don't actually have a real use for analytics. They just included analytics, because it required no more than five clicks to do so and made some pretty graphs appear.