Why do you think that, though? If the beam is shaped so that it's almost all captured, and there are negligible atmospheric losses due to the frequency range chosen, why should there be high path losses?
No magic at play here. The equations are open for all to explore. We are not breaking the laws of physics. Just flexing them with clever engineering.. just like innovators that came before us. For example, the radiating near field of a 2.4GHz antenna about 8 meters long would extend about 1km.
Surely you do not expect Emrod to discuss in detail the subject matter of its patent applications?