I'd rather view it as a celebration of good diction, and vocabulary, and the expressiveness of the English language. Maybe some of the literary references are obscure, and most escaped my own knowledge of the literature, but it seems apt to revel in the art of good writing and hold one's self to a higher standard in a piece about literature and written media and books.

Writing for the lowest common denominator is very much characteristic of modern social media and the Internet, where long-form content gives way to shorts and soundbytes and Tweets, and much content is tailored to the algorithm, serving its whims and desires, instead of those of the author and perhaps even the audience. This is what is meant by the character of the medium tinting the messages it carries a shade of digital sepiatone, all the subtleties and nuances of hue lost to oversimplified palettes and cut to 15 seconds before your attention is whisked away by the next item in your feed, or notification sitting in your dock.

Literate content can exist on the Internet but its form will be dictated and constrained by the pressures of the medium, and it's refreshing to see content try to push back against the walls of the medium by resisting the urge to oversimplify.