1st Pic.
2nd Pic
Those are 2 different ports. Both have different reward. The First mission is a fake mission wasting player time and in my opinion shouldnt even be generated like this by the game and given out as mission. What gouverneur would get such a fleet to protect such an unimportant port?
But what if....
...the composition of the defending fleet would actual scale with the payout as well? This way such timewasting missions could actual become a nice spontaneous evening activity. Maybe even restrict the max rate a player can bring to such a mission.