Some will not consider a product because a thorough scientific explanation of how it works is not provided.
I can't recall anyone asking for a thorough explanation, just an explanation that makes at least a little bit of sense. I can't translate word salads.
“ECTs clean up high frequency noise that otherwise distort harmonic structures within the music signal.”
Clean up? Look, I'm sure that audiophiles could cope with something just a little bit more precise than that, surely, after all, see the words that follow.
What aspect of HF "noise" distorts harmonic structures? Is that white noise? Ultrasonic noise >20khz? But its within the music signal, so within the audible range, so strike that.
Its not the science that is proprietary, it is the technology or invention that captures it.
Did Kevin Deal write that blurb?