The real issue isn't the substance of Ferguson's argument, though, which is shallow and basically exploded by this point in time. It isn't even the question of how such garbage managed to be written and published. It is, rather, why did Ferguson write it? The answer is simple but has profound implications for American intellectual life generally: public speaking.
Ferguson's critics have simply misunderstood for whom Ferguson was writing that piece. They imagine that he is working as a professor or as a journalist, and that his standards slipped below those of academia or the media. Neither is right. Look at his speaking agent's Web site. The fee: 50 to 75 grand per appearance. That number means that the entire economics of Ferguson's writing career, and many other writing careers, has been permanently altered. Nonfiction writers can and do make vastly more, and more easily, than they could ever make any other way, including by writing bestselling books or being a Harvard professor. Articles and ideas are only as good as the fees you can get for talking about them. They are merely billboards for the messengers.
That number means that Ferguson doesn't have to please his publishers; he doesn't have to please his editors; he sure as hell doesn't have to please scholars. He has to please corporations and high-net-worth individuals, the people who can pay 50 to 75K to hear him talk. That incredibly sloppy article was a way of communicating to them: I am one of you. I can give a great rousing talk about Obama's failures at any event you want to have me at.