It feels a little fragile to me to try to tackle so many concerns: if folks start relying on mise for more capabilities and one of them falls short, isn't as good as it could be, that could be a big hurt. There's definitely a nice conceptual win to having an all in one tool, but scoping up ambition feels risky.
Especially with task running, it feels like there's really so many very specific expert concerns that come into play. Being able to have a task graph & understanding the minimum work needed, being able to run only downstream tasks is a pretty important need, and that really gets into programming language specific views of what's happening. The idea of having something generic & so all is tempting but it feels impossible to get satisfactory results here.
Beyond Mise specifically, it's just interesting seeing the continuum between specific & multi-purpose tool, and seeing how software tends to scope itself up.