I think you may have unnecessarily restricted yourself by wanting a language that produces native binaries and is GC'd. There simply _aren't_ that many mature and mainstream languages that compile to native binaries with a GC. I'd personally much prefer a more expressive language with a less robust ecosystem (and a virtual machine), but if an Elastic lib is a hard requirement for you, then I can't argue with your choice of Go.
Or use Haskell. Native binaries, opinionated, decent library ecosystem ;).
