The disconnect here is because the basic function of acoustic dissonance takes places in the hair cells of the ear. Harmonic ratios simply resonate hair cells

The disconnect here is because the basic function of acoustic dissonance takes places in the hair cells of the ear. Harmonic ratios simply resonate hair cells in steady patterns rather than fast beat frequencies. (Slow beat frequencies are generally non-dissonant). Studies like the OP's turn up every few years and are massively flawed due to oversimplification. Acoustic dissonance is waaaay more than a single-dimensional binary function... and then cultural layers are added.