From 1st look - it's not big deal if an CV or BB is retreating, sometimes it's done just to save the officers from last "lucky" shot...
with BB it also happens at borderless maps, when they run all the game to the border and then leaves no chances for revenge to those who had balls to pursue this coward while he outranged them.
(hit&run - is a tactic, retreat - is cowardness). It's only about GB kind of battles...also the rushing alone kamikazes are the same bad players (for their team) as the waiters behind mother's dress ones.
But the biggest damage from the repeating "northern border" CVs runners is to the whole game. 3 cowards will start and play only there (north) caring only about their ships. South will be in deep sh1t over and over again. (if they think that their planes can reach south - they don't understand that flying for minutes over the empty map to the destination - is nothing but losing of fuel, and even more is losing of time, while they will reach the area - the battle is already lost). I have nothing against noobs - not all can play good from start and also not all can do it in all their battles, i am a noob too, but i hate cowards in the game, they are the ones who loses before the battle even starts.