It's actually because of the limitations of analog media that analog audio might sound better. For example, you can't compress the signal as much when mastering for vinyl instead of digital, since you risk the needle jumping between adjacent grooves. As a result, the vinyl version of a song can sound more dynamic.
From the article:
Evenly distributed power is a lack of hierarchy, isn't it? How does that article support your point that a flat system doesn't work?