It takes a lot of rigorous testing automated and manual and by community before such changes are cosnidered permanent.
One does not simply YOLO a full langugae rewrite without user feedback. it is insane.
The whole ai thing today is pretty insane, I would say. Why not ride with it, especially if your company is one of the biggest leaders?
The Zig version has not been removed and this only exists got canary builds. No rust binaries are being distributed as stable.