“Just radio waves” is what a microwave oven uses to explode eggs, or a laser to cut through metal.

It’s none of those in this case, and the amount of radiation is nowhere near, but still… radio waves are not all that innocuous.

Radiation, as in nuclear decay, is also a catch-all that includes ionizing radiation, alpha, and beta particles.

I blame the guy who invented radium cream for all the confusion.