It seems likely biased as well unfortunately if they let teams decide on their own what to use. I would wager that teams who on their own switched to Rust are probably teams that were already productive.

It’s not quite what you’re getting at, but in Bubble Bobble Revolution you can’t pass level 30 because the boss doesn’t spawn. It’s a soft lock but there’s nothing you can do to avoid it, and the game is on the DS so there’s no updates to fix it :D

I haven’t used Zig myself but I think it could have its place. IMO Rust has moved too far away from C to be something many existing users will move to (and using both in the same project is messy), but Zig seems to integrate well enough that it might.