Could it actually change the sound?
Possibly.
We all know that almost anything placed in a room can change the sound a little.
A diffuser can.
A bookshelf can.
A plant can.
The real question is whether it performs better than:
a small diffuser,
a decorative sculpture,
a bookshelf full of books,
at its selling price. That's where the burden of proof belongs.
My assessment
From an acoustics and engineering standpoint:
Reflecting/scattering high frequencies: plausible.
Generating even-order harmonics: highly questionable.
Making a room "acoustically transparent": marketing language.
Producing dramatic soundstage improvements: unproven.
Worth the asking price without independent measurements: doubtful.
If someone handed me one for free, I'd happily fool with it. If someone asked me to spend my own money on it, I'd want to see controlled blind-test results and measurement data first.
Right now, the description reads more like audiophile marketing poetry than acoustic engineering. Give me some solid data and I'll hit the "I believe button". But for now, I'll assume it is much like the "super-whamodyne, mega-twist, copper/silver infused premium" audio cable and take a hard pass.