The lore document is not canon. It is, as any other suggestion, speculation. Perhaps its based on good evidence, such as the design docs, but even -those- are somewhat suspect. Just because at one stage the designers had X idea about Z, and they included pictures or words about it when discussing how they got to the final project, that does not mean that such and thus are actually part of the story. The Nomad lore document, so far as it has any truth, is true only insomuch as it is Keepers Faction RP, and as Faction RP isn't any more canon than Indie RP, or any other faction's RP, the nomad lore can be contested by any other bit of rp information.
Making assumptions from the design docs, I find the statements that the mindshare is invulnerable to data loss, as well as the suggestion that a biological form is immortal, rather poorly thought out. For instance, Cardamine is supposed to be life extention for nomads...not at all useful if they're naturally 'immortal'. Data loss cannot be completely fixed, either. Disasters happen.
@Inconsenssus: My understanding/belief is that the ships are nomads. They're biological ships, differing from the thing that crawls from the chancellor in size and shape, the same way a whale differs from a dolphin. Still very much a similar creature.
