It’s not just the federal system, but the basic nature of disaster response. Even if the EU had jurisdiction over levees in the Netherlands, it would be ridiculous to expect an EU agency to be the front line response to flooding in Amsterdam. It’s the local government that actually knows where the risks and the resources to deal with those are. The federal government can help with money, say ensuring that poor cities have the financial resources to prepare a disaster response. But the actual response has to be local.