I think you're not understanding. The claim is that view counts are down but revenue is not because people using ad-block previously did not contribute to revenue but did contribute to view count, and now they are not counted as either. So view counts are down and creators are getting the same ad money because they already earned no money from the adblocking people.

When channels are claiming their view count is dropping 30% but still earning the same amount of money, that would indicate that they are losing out on 30% of their potential revenue because of ad blockers.