You are, of course, correct. But my previous comments still stand. Duties, such as voting officer, are “extra” tasks assigned to junior officers whose primary duties may include platoon leader and motor or commo officers. Their primary focus is on getting the jobs done for which they are rated. Hence, these people tend to be reactive rather than proactive. In other words unless someone comes to them for help they are prone to inertia. Furthermore, because there is no method (let alone requirement) for measuring how successful they are at getting their soldiers to vote there is no “command” interest in what they do.
Pretty much like civilians.