I think the tooling being not ideal is a reflection of how mature/serious the community is about non academic usage. Haskell has been around for ages but it never really escaped its academic nature. I actually studied in Utrecht in the nineties where there was a lot of activity around this topic at the time. Eric Meyer who later created F# at MS was a teacher there and there was a lot of activity around doing stuff with Gopher which is a Haskell predecessor, which I learned and used at the time. All our compiler courses were basically fiddling with compiler generator frameworks that came straight out of the graduate program. Awesome research group at the time.

My take on this is that this was all nice and interesting but a lot of this stuff was a bit academic. F# is probably the closest the community got to having a mature tooling and developer ecosystem.

I don't use Haskell myself and have no strong opinions on the topic. But usually a good community response to challenges like this is somebody stepping up and doing something about it. That starts with caring enough. If nobody cares, nothing happens.

Smalltalk kicked off a small tool revolution in the nineties with its refactoring browser. Smalltalk was famous for having its own IDE. That was no accident. Alan Kay, who was at Xerox PARC famously said that the best way to predict the future was to invent it. And of course he was (and is) very active in the Smalltalk community and its early development. Smalltalk was a language community that was from day one focused on having great tools. Lots of good stuff came out of that community at IBM (Visual Age, Eclipse) and later Jetbrains and other IDE makers.

Rust is a good recent example of a community that's very passionate about having good tools as well. Down to the firmware and operating system and everything up. In terms of IDE support they could do better perhaps. But I think there are ongoing efforts on making the compiler more suitable for IDE features (which overlap with compiler features). And of course Cargo has a good reputation. That's a community that cares.

I use Kotlin myself. Made by Jetbrains and heavily used in their IDEs and toolchains. It shows. This is a language made by tool specialists. Which is why I love it. Not necessarily for functional purists. Even though som Scala users have reluctantly switched to it. And the rest is flirting with things like Haskel and Elixir.