The thing about it, is..that..if one actually follows the cutting edge of psychoacoustic research and cutting edge work in acoustics, re scientific articles at places like physorg..
...what one discovers, through doing the hard work of article and research reading and reference sifting...
That the bowls (originally by Franck Tchang) actually DO WORK. AS ADVERTISED.
But, it took years and years to emerge as part of the new knowledge base. It is still filtering and dripping in.
10 years from now, this will all filter down into the average bit of knowledge, for norms in psychoacoustics ,and the fields involved in acoustics. It will be in all the textbooks, to some given degree.
And the people who can't innovate and can only attack things as they are not in the textbooks (dogmatic mindset), those negative proofing mindsets...they’ll be busy attacking the next thing which they don’t understand, things that are emergent and not yet in the textbooks.
And be tossing around the those intellectual flyweight nickel level charlatan and snake oil screams like they were intellectual level manhole covers.
Since, in high end audio, the expectation is the the manufacturers do have the intellectual capacity to bring the new and cutting edge -into the world of audio... it is a given that the dogmatic mindset negative proofing types, they will attack relentlessly. Ad infinitum, as the history of it shows so abundantly.