This is a great point. As I've noted a few times, our surveys were conducted with different question sets for every browser that made note of different features

This is a great point. As I've noted a few times, our surveys were conducted with different question sets for every browser that made note of different features and warnings. We also took that into consideration when aggregating the results into one whitepaper. We wanted the whitepaper to be browser agnostic, this isn't about blaming specific browsers or actions. We wanted to highlight the larger issue that there is a gap in privacy education for a mainstream user and that it is something that members of technical communities can all step up and help with. As for a special note for the warnings, I would say it is akin to the Terms of Service for websites. Perfectly visible, but never really read and understood.