I disagree. If anything, they should have tested Obj-C and Swift. I would also have liked to see Scheme, Common Lisp, or something else lisp-y besides Clojure

I disagree. If anything, they should have tested Obj-C and Swift. I would also have liked to see Scheme, Common Lisp, or something else lisp-y besides Clojure. Kotlin would have been interesting. R or Mathematica would have been fun, too. I guess it just comes down to needing a sufficiently large corpus of code and commits and having to eventually publish.