Can you explain why you feel it's a shame? We write a lot of Clojure at FarmLogs but there is certainly a time and a place for it.

We handle iOS push notifications with Ruby, a lot of data and image processing with Python, and even run .NET/Mono in a few areas. Our stack is very diverse and we do a really great job considering what the best technology for a particular problem might be.

Clojurescript is certainly interesting, but I wouldn't consider it a shame that our front-end isn't built with it. I love programming but at the end of the day you gotta remember that code is really just a means to an end.