Well it is still mostly JS. Claiming JS is crap (often stated as "beyond repair") and TS is good just because of (arguably) light addition shows some serious cognitive dissonance. But nevermind:
> The fact that it can be transpiled to Javascript is irrelevant
From my experience main problems seem to be:
1) poor static analysis of code, leading to bad Intellisense etc. - Mostly solved by TypeScript.
2) DOM manipulation APIs. I don't see how Rust will help here. Especially considering JS frameworks solve this. I guess that's what's new in the OP.
Otherwise JS serves as pretty good language for beginners/UI wiring.
But thanks for at least describing some strengths (and weaknesses) of Rust when directly compared with JS.