I'd say the type system isn't that much of a barrier to entry. You're likely used to one from any existing statically typed language; the only new things are sum types, polymorphic types & type inference. These aren't _that_ hard to get your head round but really improve the safety of your program.
The debate on static vs dynamic is a far from settled one, but I think you would be hard pressed make the case that Python has no place. In this case, I'm suggesting that Elixir is a great way of getting people into functional programming and learning the value, while being immensely useful in its own right.
Learning that value is a good first step. I now find it immensely depressing every time I go from my Phoenix web-app back to the Android app. Kotlin is better than Java, but it's still a mess of objects and interfaces, and having to construct 5 things when it could just be passing a map to a function. The result is that I will now more aggressively pursue FP options when I'm looking at technology decisions (e.g. bucklescript is on my 'to investigate' list).
I see your argument. If your aim is to get into functional programming then Elixir/Erlang, even Lisp/Scheme is fine. I don't think it's the functional nature of OCaml and Haskell that make them powerful; I think those parts of the language are great, yes, but the type system (static, algebraic, inferred) is the real secret sauce.