I'm not worried about this being used as a combat ship, going out and finding trouble. I am worried that as a survey ship, trouble will find it.
Locking weapons into facing one direction is genuinely a terrible decision, and it still only has as much space as a Half-Saucer hull. That is two disadvantages on one ship, for the ability to save only one industry. I understand wanting to keep the ship cheap, we have to worry about industry cost again now that the war is over, but trying to say it needs little to no defense at all is naïve.