They discredited themselves way before that.
They have had the long knives out for creationists - even to the point of including verbiage in their “charter.”
Not saying that creationists are correct in a scientific way - I *am* saying that the much vaunted practitioners of the scientific method (with peer review, no less) can close their minds with the best of them.
I would have respected them much more if they had actually done some sort of scientific inquiry into the matter rather than dismissing it out of hand.