Maybe I'm just a dummy who should stick to scripting, but I had exactly the opposite reaction: based on everything I've seen, this is wholly uninteresting. I can't imagine a single practical application that isn't more comprehensibly written in an existing language. But I feel the same way about Haskell, too.

The older I get the more I value code that is easy to understand and debug by either myself or someone else months or years down the line when the original context might be forgotten. Ultra-dense syntax like this only makes that almost superhumanly difficult.