True Left

“if by "surpass" you mean in terms of success, then I would not anticipate a correlation. If you mean in terms of quality, then of course I myself am partial to post-Counterculture works that pay nostalgic tribute to the Counterculture era.”
The latter. I agree, and I believe I stand, that it is important to be skeptical of Counterculture-influenced post-Counterculture works.

“If the intent is sincerely tribute, then the production can be expected to deliberately avoid overly contemporary elements. Whereas if the production incorporates these while claiming to be tribute, I would doubt the sincerity of the claim.”
“but for marketing they relied on a retro dance tour with local participation”
So basically pre-internet production/marketing. I can see even ‘Dance With Me’ incorporated minor internet use of marketing as well as heavy autotune in the production in the song itself. It seems these days, in order for something to be successful, the content may always need technology to produce and the internet to promote.
But from my experience, people do get the best enjoyment when they are not merely being entertained but spontaneously contributing.

“Aryan phenotype alert”
She kind of looks like one of the members of Perfume Ōmoto (though there are more photos of Ōmoto with a heavy jaw than that of of Miyoshi).