I think about what is meant by that, that some ships or other commodities just don't fit into this game, this mod... you're not going to put in a flying paperclip for example (extreme example yes)
All ships in this mod are low polygon so they are a bit blocky and not perfectly round like in the newer games... if you go put a extremely good modelled model into this game it would just not fit between the other ships... A nice example is the marshflyer... its a alien ship from an unknown species (( which is just not there in this game)) but well that should be unfreelancerish, and to keep this mod the discovery mod we keep into the freelancer style
