Similarly, sudo-rs dropping "legacy" features leaves a bad taste in my mind, there are multiple privilege escalation tools that exist (doas being the first that comes to mind), and doing something better and not claiming "sudo" (and rather providing a compat mode ala podman for docker) would to me seem a better long term path than causing more breakage (and as shown by uutils, breakage on "core" utils can very easily lead to security issue).
I personally find uutils lack of care to be concerning because I've been writing (as a very low priority side project) a network utility in rust, and while it not aiming to be a drop in rewrite for anything, I would much rather not attract the same drama.
No, they openly refuse to accept any GPL code.