The key here is its "near ionizing" the mechanism is still based on photon energy for which RF does not have enough. Near ionizing and up have non thermal effe

The key here is its "near ionizing" the mechanism is still based on photon energy for which RF does not have enough. Near ionizing and up have non thermal effects, RF's much lower photon energy's only known action is thermal which requires orders of magnitude more power to create enough heat to damage DNA.