I have other reasons - mostly hiring competent engineers that deeply undertand the language. I can hire a competent SpringBoot engineer who can "fill out the form" and have a fast-enough API ready in a few days. Will it be beautiful and elegant? Probably not. Will it take traffic and get the data from the producer into a database reliably? Most likely.

From my time with Haskell, I learned to REALLY think about types. Like, REALLY. Having a type doc above every function that describes a curried path, is really cool. It made OCaml documentation (which I consider among the worst) make sense. (No shade at OCaml as a language. I LOVE it. But their docs aren't gonna win any awards)