Now, now, let's not get ahead of ourselves, the Shivans using one or two uncharted nodes is fair, but it's pushing it a little to say that all flanking maneuvers made by Shivan forces [of which it's safe to assume there were at least several] strong, and yet uncharted nodes. Command in both games has made mention of the Shivan's ability to move through uncharted nodes, which they wouldn't push if they didn't at least catch the bastards in the act.
And anyway, coupled with the subspace-induced supernova thing, the whole 'Shivans are able to use nodes too unstable for regular travel' line of thought is practically at the core of the 'Shivans are masters of subspace' conclusion taken almost as fact around here. Correct?