That is because of your ignorance. It clearly happened in this instance, and it is not really all that uncommon.
My, but you are easily shocked. Please be sure you are never too far from a fainting couch and a vial of smelling salts.
It would be a total waste of time to point out the flaws in an obscure, 20 year article that has had zero impact in the field. If someone was to write to the editors, they would probably just think “WTF?” and file it in the circular filing cabinet.
I will repeat the question that you have, so far, ignored: How many articles on evolution has the DI claimed were flawed over the 20 years the organization has been in existence? How many times has the DI written to the editors expressing their criticisms? How often have the articles been retracted (or “refuted”, as you put it)?
Or, if answering that is too much work, you can save time and simply admit that you are a shameless hypocrite. Either will do.