The bridge was damaged too so in all likely hood the commander was on the bridge, not on deck.
Your statement above appears contradictory on its face.
Not trying to be needlessly argumentative but (1) if the vessels were the same size and maneuverability, the vessel coming from the right or starboard would have the "right-of-way". That would put the containership in the clear and the naval ship in the wrong.
(2)In this case, the navel vessel had all the maneuverability and the container ship had little. Compared to the later, the destroyer could turn, stop and otherwise maneuver on a dime. It is like pulling on a railroad crossing in front of a 60 car train.