@mijostyn, obviously you can fool some of the people all of the time.
On the Shaktis, if you think the claims are silly, check out the review,
https://6moons.com/audioreviews/shakti/hallograph.html where the reviewer repeatedly quotes respected physicist Feynman, while not even realizing what Feynman was generally talking about (he was talking about people like the reviewer).
Of course, someone without a basic understanding of how sound waves behave could believe many things, once the seed is planted. However, if you understand how sound waves behave you know that many of the claims are over the top, though I expect with my measurement equipment, there is a slight chance I could detect their presence, though I highly doubt I could hear them in a blind test though perhaps, in the one instance in that review where put directly behind the listening chair, I would expect you could pick up reflections given how very close they air.
But then again, look at that listening space in the 6moons review. That's not the listening space of a professional reviewer. I would object to calling that listening space to be that of an audiophile, no matter the equipment. It would be hard to tell the difference between anything in that room.