It does add to the comment. It hopefully encourages people to actually read the article. People can not contribute to a discussion constructively if they do not read the subject of the discussion.
> Please don't insinuate that someone hasn't read an article. "Did you even read the article? It mentions that" can be shortened to "The article mentions that."
I know it is in the guidelines. I am saying that I disagree with that guideline as it does not accomplish the goal the guidelines are intended to accomplish.