I don't believe that is true at all. Noise from electronics baring a radio station coming through usually doesn't come out of the speakefs, say when you crank the volume with nothing playing. If its super bad maybe. What yoh really get is an abberation quality to the whole music spectrum, that shows itself to more and less degrees depdning on source music.
See, most RF inducers bring detail forward that otherwise is quieter or not noticed. You get a surreal nature of detail that can be fun. But you are nit hear the 800khz or whatever that is causing it. What is occuring is a voltage elongation effect that happens as you bleed off some RF in whatever inductance you have following, say as one example, the final amplifier stage. (One example of many) The effects of the detail also make sound stage often expand and imaging including 3D can be stronger. So it has benenfits many can appreciate, its all a matter of taste. The funny part is the wrong noise, introduced at the wrong place, will be fatiguing even though you're just hearing music (that is modified by the noise).
Don't fret if you're just now taking it all in, and if the whole "you don't hear noise, you hear the affect of noise" concept is a bit to take in. Even some seasoned electronics designers haven't made that leap in understanding.
I agree with that, you're right it's not audible noise unless it's a major issue, but the effects are certainly audible. I'd also say from experiencing the atmosphere demo that you're right about it's effects as well... in fact the atmosphere has different settings that modify perception of the soundstage and overall presentation of the music. It's certainly not all bad but I can only guess whether long term listening would become fatiguing. Personally, I'm fine with the music w/o the Schuman resonance effects.