I believe Carriers like to run away (i.e. widen the distance) when in Naval combat. CAGs on the other hand are air units and so cannot take part in Naval combat for this reason.
Will we be able to set the "stance" of CAGs?
For example, an "aggressive" stance that automatically launches the CAG to attack when the task force is engaged. It would sort of suck if the Hood is being pounded by the Bismark, and the British player has to actively go and tell the Ark Royal to launch it's CAG. There should be a way to tell the CV's to automatically launch their CAG's if their task force is engaged.