It's just that is adresses the questions like "what to do when you lost primary weapons in critical, but it was a destroyer, not having them to begin with?"
The second version says - apply the next result above in the critical results table. I swapped two results (first with ninth) to ensure that when the first critical is no longer applyable, then there's no ship to apply the results to either
btw. I noticed now that there is "f" version of rules already, while I still have "d" printed out - please Blackronin - write here that you uploaded a new version so that we can follow up on them