Your argument is not compelling: you've described the drawback without considering the benefits. What if that prominent maintainer hadn't made the mistake (a mistake attributable to poorly captured design or requirements, but not the implementation). Is there something intrinsic to Rust that would lead them to this error? (no, I think not).

> Please don't be like these people! Keep the stable software we have, and maybe write new software in Rust.

I say: spend your time how you see fit. I love Open Source software, I love GNU/linux and GNOME. But IMO it's always been about scratching an itch first and commitment to a cause second.