I'm a huge proponent of copyleft licensing, I'm in favour of using the GPL as a tool to ensure users have the ability to modify the software on their devices, and I'm just having trouble getting too worked up about the Rust reimplementation of Coreutils being MIT. Philosophically? Yeah, it sucks. Practical outcomes? Almost certainly none. The GPL violators aren't going to change coreutils implementation to avoid being sued, the FSF wasn't going to do that anyway