Yeah, my theory is that Rust is going to be a somewhat "local optima" for a while for LLMs.
LLMs have a couple major problem, they hallucinate and make mistakes. So the ideal way to use them is to constrain them as much as possible with formal methods. Rust's type system is a formal proof of some forms of correctness, this will let "vibe-coding" work to a much higher degree than with other languages.
In the very long run, I suspect that all vibe-coding will actually occur in a language with dependent types and we'll push as much as possible into being proven correct at compile-time. Since the cost of generating code is plummeting, and thus the sheer volume of code will be exponentially rising, this is the only way to prevent an unsurmountable mountain of errors.
Formal methods and LLMs are a match made in heaven.