The problem with that visual is that it ignores the fact that the same social mechanism that blindly repeats the anti-global warming line today was repeating the pro-global warming line a few months ago.
It's not clear whether the author's objection is that society reduces nuanced and still developing scientific research to sound bites and repeats that as if it were canon, or the fact that the message has turned against AGW (or at least not as vehemently pro-AGW).
A great visual at the end of this article.