It is strategical sound to hide nme cv's.
Especially when most players don't have a clue how to drive a cv and keep it alive.
Granted, if you have momentum and a good group in the area there is no good reason NOT to use the CV in an offensive fashion.
It really depends on the situation.
One thing I have never understood is why people feel the need to drive a cv right up to shore at an nme base.
I can't count how many nme CV's I have killed 3-8k out in a SB.
Killed many in a manned ack as well. (which is sad) And a few sitting onshore in a tank.
(not to mention most don't pay attention to nme PT spawns)