The article is about the very recently accessed THz (terahertz) region of the electromagnetic spectrum. I doubt that a Rife-type device can access that wavelength region, even with overtones in mind. But it is nontheless the best article that shows how electromagnetic resonance can be used in medicine, surprise!
While some chemicals show their effect by having a certain color, others show up with resonances in the THz region, I remember reading that DNA has resonances in the THz region as well. So this is a high-tech analogy to what Rife and Clark discovered years ago - only in a different wavelength regime! And certainly being more complicated and expensive it is frontier Science and therefore acceptable in the medical field.