[vertex-four]

The issue is, of course, that the more you focus on specific tasks the more your language becomes "designed for" those tasks, and the language becomes less general. The language already went through some of this with Servo - the DOM would be much easier to implement with an object-oriented language, but that wouldn't fit in well with the rest of Rust and would significantly raise complexity.

[IanCal]

That is a concern but the other risk is by not doing this the language progresses in areas people happen to currently use it, which will be skewed by what it's already good at. You can then end up never improving for those cases it's weakest. This covers types of programs but also experience levels and histories of the programmers themselves.

You are right however that you need to carefully pick the tasks to fit with the original aims of the language.

Perhaps a good way of phrasing this is "why aren't X people using rust for Y?".