It’s hilarious that I’m getting down-voted on Hacker News for this. Does anybody actually disagree with me?

I don't disagree with you, it is impractical. But the whole point of the project is to challenge the exact tech conventions that lead one to conclude that it's impractical. So while I agree with you, saying "it's impractical" seems to miss the point.

I appreciate a whole host of conceptual, provocative, performance, and abstract art. I even enjoyed the frisson of the idea of the famous goldfish-in-the-blender. But I have difficulty assigning an actual cognitive validity to this project. It’s probably just me.

Judging by the readily quantifiable responses on HN expressing disapproval, I definitely don't believe it's "just you". As far as "cognitive validity" is concerned, the closest you'll get to an answer from the author is their "Why Screenless" section. But you may still be left in "agree to disagree" territory with them.