Public would never demand for that train to travel at midnight. It's the just the political demand.
Have you ever travelled in this train?
Merely 10-15 people travel in one coach and many times RPF tells people to gather in one coach rather than being scattered at different places. This was the regular scene pre-covid. In covid times it may have gone down.
Mostly...
more... this train used to reach Saharsa post midnight. Only the local people would be able to go home. People from adjoining districts have to wait till 4 am at least, then the buses for different destination starts.