There were hundreds of people involved. We couldn't have done it without the hundreds of people. While Art was a fantastic guy and a tireless worker, a good chunk of his contribution was management.
i.e. A competent manager. He not only understood all of the physics involved, but a good chunk of the engineering, along with having decent managerial skills. No one with skills solely in an MBA, or theoretical physicist, or civil engineer could have done it.
Even if he didn't win based on something he mathematically proved, there's no question he's one of the top physicists around.
If you look at the Nobel prizes as the "best of" awards, and not "the guy who invented something all alone", it becomes a bit more palatable.
On top of that, the Nobel committee is limited by the rules of their foundation. Even assigning Nobels for something done 5 years ago is arguably outside of the directions of the trust.
So yeah, the article isn't theoretically wrong, but it's wrong for practical purposes.