The comment itself:

[…] Rust-coreutils does affect us. This is something we definitely see as part of the base so even though we would prefer for coreutils not to change, we’re hoping to align with Ubuntu on this. We’re concerned with regressions. New code almost always introduces regressions. That’s a lot of new code on very important components. I was shocked to see rust-coreutils updated from 0.7 to 0.8 just days before the stable release of Ubuntu 26.04. It actually broke something important on our side. We fixed it. I’m sure Ubuntu will update it whenever new regressions are found. We’ll see.