Huh, not the solution I expected for Naomi's situation but whatever works. I do think it peaked with "Tell James Holden... I am in... control..." though. That ending with it continuing through the credits was 10/10. Heard the news about Alex's actor so I wasn't too surprised by what happened though I was expecting him to just vanish for Season 6 with a throwaway "Alex left for his home planet. (Alex died on the way to his home planet)" type thing instead of it happening here. Maybe I'm misunderstanding the relative power balance of the powers here but I'm not sure why Earth and Mars wouldn't be able to retake the Ring in a straight fight. I know fighting inside the Ring is uh... ill-advised, but still. Still buys time for that admiral on his new planet I suppose. Also, Drummer was right tbqh.
I think the idea is that Earth and Mars are in such disarray that they can't mount an organized counteroffensive. Plus, controlling the Ring Station gives you a strategic advantage because they all have to funnel through the same Ring to get to you.
also that final scene is a good hint about why a massive fleet going through the Gate won't work (although they won't explain that until next season)