I did not yet find out what exactly those pax are trying to achieve by getting up early, gathering their stuff from the hatracks etc. They will not get out before the doors are opened anyways, have to wait much longer in the passenger bus (air-conditioned or not, the doors will be open all the time) that will wait for the last passenger to board it (in case of an open apron position), spend ages at the baggage delivery hall until their bags appear on the belt, and so on.
Why not just keep seated, wait for the initial rush to push and shove by, and then without any hassle pack up, walk across the baggage hall, grab ones bags from the belt, and be out of the terminal in no time...