This can't be understated. Like, for this particular thing? Yeah, you could say "oh, they're out of range of the ship and that should never happen, warp them ba

This can't be understated. Like, for this particular thing? Yeah, you could say "oh, they're out of range of the ship and that should never happen, warp them back." But you have to have them escape the zone first to know you should do that. And what's the most likely way to do that? Falling out of the world. Not climbing. So there's a good chance you'll miss it even if you thought about it! This is exactly the sort of bug that anybody under the kind of bone-crunching compression you see in game development is gonna fix after they see it. "Don't start bandaging until you bleed."