Javascript has a quite different use-case audience than Rust. As an example, try to convince a guy like Linus Torvalds to officially support a particular PL for Linux kernel development, when his absolute priority (quite rightly so) is predicable, performant and portable code generation on the same level as raw C, with ease-of-use of a PL not being even a distant second, if considered at all. JavaScript does not really have to live up to those kinds of challenges.
The assumption that "[Rust] stagnation" is due to some kind of "Rust committee inefficiencies" might be incorrect.
The assumption that "[Rust] stagnation" is due to some kind of "Rust committee inefficiencies" might be incorrect.