This would be entirely in line with financial incentives of the proposed attesters and even logically defensible (oh well, we haven’t vetted uBlock, so you can’t browse with that installed).
And aside from niche platforms, do you want the 3 big companies to decide what you're allowed to see on the internet?
I do not want those companies (or anyone, really) to be able to decide what is or is not an allowed hardware/software setup to access anything.