I agree, constraints often bring benefits. The question for a language is which ones to bring in and which ones to leave open. From that perspective I value clo

I agree, constraints often bring benefits. The question for a language is which ones to bring in and which ones to leave open. From that perspective I value clojure's choices (and don't value js every-io-is-a-callback design). Any project of the size you mention needs technical leadership and constrained choices (for IO we use this, we do http this way..). This will be true regardless of what language you're using.