The Bretonia/Kusari front-line has had its share of accusations of all manner of "ungentlemanly conduct" among players since the Nagasaki first sat its fat rear near the Holman Outpost.
If the fight is planned or agreed upon, ie if both sides are looking for a dog-fight, then it makes sense to do it away from a base. I used the tactic of withdrawing to the Derby more than once when facing superior numbers in impromptu battles.
KNF hug bases plenty - they're damn right to as well, considering what I'll do to the lot of 'em.
But the thought of a BAF ensign "retreating" - ugh it's enough to make me puke. Onward chaps! Death or glory! I'm right behind you (at least 10k behind)