Codo the crew quarters has a defense of 10 I think. So depending on how many crew quarters there were then without a defense station they could still defend. Also, I do think the boarding party has a defense value but it is decreased.
BTY have you voted yet for the civil war idea? Any new ideas or suggestions please give a post in the intergalactic civil war thread. If you don't know about this idea check it out.
Thanks for your time.