Except that Swift also has safe concurrency now. It's not just Rust. Golang is actually a very nice language for problems where you're inherently dependent on high-performance GC and concurrency, so there's no need to present it as "better" for everything. Nevertheless its concurrency model is far from foolproof when compared to e.g. Swift.

But that’s bad news for Rust adoption… Worst case for Rust is it takes just some (not all) marketshare from C and C++, because Swift, Golang, Java, Python, TypeScript, etc have cornered the rest.