The thing about the Vagrant Nomenclature though was to have people decipher it themselves, as all Vagrants have to use the same words. Simply to prevent the typical metagame "I know all things about the nomads and I am the most lawful hero out here!" players.
The idea of the Vagrant speech was to make things more understandable, given that the community does also consist of many non-english people. The edgy names are more for NPC/player factions and systems, but simple objects have simple names. Moros for example is the sphere of the purple veil - which refers both of the planet's color and the asteroid field surrounding it.