You jest, but the the goal of this "coalition" is to do good enough to not make you want to do that. Of course, the human review built in would preclude most of the large botnet attempts. An analogy:
This is exactly what came to my mind when I saw the headline. I'm sure this will happen, and a new arms race will ensue. Users are better off with uBlock Origin and such, instead of relying on advertising companies to handle ads better.