“In 2021 a lot more of the Rust ecosystem has become asynchronous – such that it might be appropriate to just say that Rust programming is now a disaster and a mess.”
Rust’s ownership model and closures that run later were never going to get along. The language bolted on async anyway, and the ecosystem followed. Now a simple HTTP call drags in a runtime, pinning and a wall of lifetimes. Plain threads would have done the job for most of these programs.