>We've reversed course on plenty of things that were once believed to be fine
That is my concern. Specifically that the "non-ionizing radiation" is a red-herring. Its possible that EMF exposure effects cells in another way that we've yet to realize. As a poor analogy: Arguing that being exposed to constant visible light on the basis that "Light is non-ionizing" misses the fact that constant visible light disrupts the circadian rhythm which has a host of other ill-effects.
To be clear, I'm not suggesting that we ban something on a fear, but given the enormous potential cost if we get it wrong, it should be thoroughly studied.