That's certainly true today, but other ecosystems have benefited tremendously from tools that are able to work directly with the IR (well, bytecode). Usually to

That's certainly true today, but other ecosystems have benefited tremendously from tools that are able to work directly with the IR (well, bytecode). Usually to pull off features that can't be expressed directly in the language without huge pain, like continuations, or to do things like profiling. I understand the desire to keep MIR private and avoid needing to stabilise a syntax and feature set for it, but there are benefits to doing so as well.