> there are many options for functional languages that compile to JS

Arguably, depending on what you're building, the pain of integrating an entirely different language into your stack is greater than the pain of simply using something like Ramda (or, better yet, just writing simple, imperative code). YMMV of course—if the problems you're solving lend themselves naturally to purely functional code, maybe something like Rescript or PureScript may be worth it, but for most projects, I'd guess probably not.