I think you're misrepresenting the facts with your response, as the article actually states they decided to use humidity data rather than satellite data of clou

I think you're misrepresenting the facts with your response, as the article actually states they decided to use humidity data rather than satellite data of clouds, because "conveniently, high-quality relative humidity data is readily available from satellites". I'm not sure how you can determine whether their approach is good or bad from that article.