The article points out some reasons why it might be difficult (not impossible!) to construct the electromagnetic field required for such a ramjet, but yes this point seems to be completely lost on the author. A Bussard ramjet specifically exploits the presence of interstellar hydrogen as a valuable energy resource.
Unfortunately those who have worked out the physics for Bussard ramjets in detail find that they don't really work as an energy source or a propulsion mechanism while cruising. Indeed - more useful as a brake.
