* HilariousInHindsight: Probably invoked. ''Intrepid'' introduces the Abdicators, an ApocalypseCult convinced that an AlienInvasion will wipe out all human life that doesn't hide itself away. Then Kris discovers the HumanAliens that mean to [[AbsoluteXenophobe exterminate all intelligent life that isn't them]]. The similarity between the two is lampshaded in "Welcome Home/Go Away", suggesting it was intentional.
* MorePopularSpinoff: This is sort of intentional; Mike Moscoe's first series of time travel books alas did not sell well. Thus he went into Military science fiction. His Society of Humanity Series sold about 10k per book. In order to sell more books, he had to write books under his mothers maiden name.