I fail to see the awesome-ness. It's a proof of concept about a concept that just doesn't make sense. There are significantly better ways of presenting color/logo/icon/anything other than CSS.
I find the list of comments regarding this being "narrow minded", "contrived" or generally this being "a bad article".
It isn't, it's spot on. If you're outside the bizzaro world of overvalued, under-producing nitwits, the vast majority of technology is written on what's already understood by the team/developer. Because, you know they have budgets, and project managers, and families.
Jack isn't a rockstar, he's a self-important ass using his employer's/client's funds to learn a new technology that no one can maintain.