I highly suspect that there are not enough direct connections that can't use one ~600 seat flight instead of several ~200 seat flights in the same day. When I l

I highly suspect that there are not enough direct connections that can't use one ~600 seat flight instead of several ~200 seat flights in the same day. When I look for big city to big city flight I usually see several different flights there (when spaced in 1-2 hours that's definitely different plans) - they can be served with one 380 easily, (ignoring other factors).