I'm worried about this too, as we run a company that invests heavily in developing browsing technology that is powered by these browsers (like chromium) but liberates them in various ways (such as running headless in the cloud, and then having users connect to it remotely), or running in a "semi automated". Both of these things would possibly be flagged by these attestation guards, and would not be environments that "preserve the integrity of the ad business model and the dominant browser market". If you want to get involved in doing something about it, come and check out our open source browser work at:
https://github.com/dosyago/BrowserBoxPro and get involved