There! that pic said it all!!!
About the purpose... Yes, it has a purpose. because it HEAVILY improves maneuverability (sp?), because the maneuvering (roll to be more precise9) thrusters are in the strut... if you know physics lever (I think that's the one...) law, you know that the thrusters put in that location make it roll faster than being put in the main body... (I hope that you understand what I'm saying, but its logical and true), and I want to give the sol dominion ships a new type of piloting, to make them original, so with these ships, instead of turning, you make most of the maneuvers roling and pitching like in a fighter airplain

I agree that from that pic the strut looks like it is hold only by a little piece, but that's just because the (minigun-type blasters are positioned right in front of it, and you can't see the connecttion very well from this angle

That's it, you may continue
