I've heard this sort of argument before but I'm not sure it was from you. Back when [CR] was starting up...something said about keeping the Freelancer-ness in the mod. I'm afraid if that is a concern, the mod is already tainted with more Hollywood hulls than one could shake a stick at. I see this as a very practical matter. Most of the custom models out there come from TV. People get inspired by these shows and spend the time to create the ships. Its much more difficult to create something from scratch-perhaps less diffictult to make a model derived from the vanilla FL universe. However for the most part, modelers are interested in making ships they see on TV.
Obviously I wasn't around when this mod began. I don't know what vision Igiss had when he started it. From second hand accounts, this mod was intended to keep its plot confined to the story started with the single player campaign. And now that I think about it more, I would prefer all rumor information/stories to remain so, with expansion possibilities like the Bret/kusari war done occasionally. So the idea is to keep the Discovery story pure so we don't end up with another SW installment, or BSG season 10 for that matter. But the ship models being so hard to come by...I think it would be ok to add ready-made ones and incorporate them in the same way all the other ones have.