So I'm not saying that this is okay, but there can be a (internally) consistent justification for it. As a civil servant, you are not simply an employee of the state like other workers. You are a service person and the state is the service master. That means not only no right to strike, but in cases of disasters, war, and other emergencies, almost universally deployable. So under certain circumstances, also for stacking sandbags or pushing injured people on stretchers around. Whether that's realistic or if there could be other solutions for it. No idea, I would have to think about it. But I could imagine that this is a justification for such criteria.