[otter-in-a-suit]

Not assuming you’re serious, but in any case: the reason is the JVM (+ Scala) ecosystem in the data space.

[epgui]

FWIW, I do believe there is a serious case to be made for Haskell… But it’s probably beyond the scope of this context / would require changing many other decisions.

If integrating with java tools was important then personally I’d ask “why not Clojure”.

:)