This is where Rust shines, CLI tools where a ton of processing needs to happen and execution time is extremely important. For almost every other problem, the amount of computation is much lower and/or the execution time isn't as important.

Indeed, no sane JS dev would jump to Rust bandwagon, even if he’s very fond of TS.

Besides Bun is not Rust even though Deno and some tools are. The JS crowd generally does not care about coding Rust, though would welcome faster tools which are sometimes rust based. Also Go based and even Zig based.

Additionally if one cares about performance, I would much rather write C++ than Rust, as that is directly supported by V8 tooling, without adding even more additional layers to debug.