I'm starting to wonder if anyone read the infocard... Specifically the part where it says that this ship is developed off of the Fafnir itself. That should imply that it's based off a similar hull design and internal component placement as well, which is why it looks similar to a Fafnir and unlike the rest of the Liberty ships.
But hey, the LABC doesn't look much like a Liberty Siege Cruiser or a dread, but nobody really complains about that.