Haven't seen the addendum to the initial theory, but my take on it is that it does explain a lot, and draw parallels with what we can sometimes see in wild cats that get adopted as newborns. Still, they do sometimes attack their owners and can be misdirected by primitive instincts. So, sounds good to me, though I would add that, once outside the influence of a large colony, the Shadow Bugs and Nymphs can be influenced to accept a new "owner" (much more difficult at later stages of development, but not impossible e.g. bears). This last bit can tie in nicely with what LethalLaurie and I came up with for interaction of Gelves with shadow bugs.