When mentioning science, or "the scientific community" (which a considerable number of my family are qualified members of) then you need to provide proper sources for your comments. If there is a consensus, derived from experiments by independent researchers, then you should be able to link to the papers written on the topic. At the very least, someone should have measured, with sufficient equipment, the output of a DAP playing back the same track from both a regular micro SD card and one of the Sony low-noise cards.
Specifically, the
description of the card, roughly translated from Japanese states:
The effect of electrical noise on audio circuits is well-known in audio engineering. Without any experience of having used or tested one of these cards, at the very least the concept makes sense to me and I'd certainly be interested if someone qualified were to take the time to properly test one -- in an AK380 especially, as that is the topic of this thread, not rants about stuff one thinks is BS for no substantiated reason.