I would argue this means the users of the higher level language need to learn the language their tooling is written in, or consider switching to the underlying

I would argue this means the users of the higher level language need to learn the language their tooling is written in, or consider switching to the underlying compiled language altogether where possible. My entire career has been with scripting languages, but I think the pendulum is swinging again and they are back on notice. Anything that isn't strictly a scripting need is orders of magnitude more ergonomic to do in a compiled language than it was a decade ago. Why fight it? I'm still watching the developments of WASM closely, because while JS does the trick and always will, if you can build an app in a language that produces an equal or better result in WASM, why wouldn't you consider it from an engineering point of view? Then there would no longer be a language split. There's a lot of "ifs" here for sure, but the possibility exists that the languages we currently use are not the best for the task. I think when we see projects like this, it's a good opportunity to reflect.