The same way they owned up to misspelling "Simulation"? Oh, wait, they just flipped the graphic and hoped no one would notice. Or the wrong number of jumps on Lorca's keypad? Sorry, that one got glossed over, too. Or the total disregard for elementary physics during the Shootout at the Binary Stars Corral, and its aftermath (a ship gets rammed by another and doesn't budge or change attitude an inch; one ship loses power and gets sucked into a gravity well, but others sit unpowered for six months and don't drift at all)? Nope, gravity is a capricious mystery that works when it feels the urge.
That they couldn't even get close to what a D-7 looks like is no surprise. Just slap it in and don't look back.