If we had 50gbs consumer bandwidth, with multiple competitive providers in each local market nationwide, then I'd be more inclined to think things would develop as the article suggests.
For audio, we've lost a technology-generational change that I would have preferred--graduating to ubiquitous HD audio (I would call that 96/24 or 192/32, not 'Superaudio'), instead of degrading to MP3 and YouTube-platform compression.
As far as the mass markets for music go, I'm in a tiny minority there, as the current state of affairs demonstrates all too clearly.