It might be a bit of bad publicity for those who want to rewrite as much as possible in Rust. While Rust is not to blame, it shows that just rewriting something in Rust doesn't magically make it better (as some Rust hype might suggest). Maybe Ubuntu was a bit too eager in adopting the Rust Coreutils, caring more about that hype than about stability.

> Rust is not to blame

Isn't that an unfalsifiable statement until the coreutils get written in another language and can be compared?