Can someone please tell me this is because of some sound aerodynamic/stealth/technical reason and not because the utility hyd system just can't move all three legs at the same time?
Perhaps the 'Systems Operator' - the 'plane can pretty much fly itself - has to wind the gear up one leg at a time? The SO only has two hands after all, the other would be desperately podging buttons and flicking switches trying to get all the pretty lights in the workstation to stay green at the same time.