Elm is nowhere near Haskell or Scala in expressibility. You would have to compare Purescript/GHCJS/ScalaJS. In the native Haskell/Scala land I usually don't have to do much ceremony and the functional code is succinct and a pleasure to write. They may lack the all powerful macros of LISPs but the need to reach for a macro seldom arises.

The original point wasn't about code size it was about bugs and I was surprised to see Clojure doing better than the very strongly typed ones. Hence the comment on the smartness of Clojure people ;)