Well thought through, but I’d slightly disagree on the pricing of TW/TB omicrons, partly through personal experience of the effects of omicron abilities in TW, and partly because of the downgrading of CM worth in TB.
I’d argue that having an entire guild apply one TW omi can have a much greater beneficial impact than all members applying a TB omi. For one TB omi you might get everyone to do one more CM, or one more wave of a CM, but particularly in the first few waves their worth towards earning another star is negligible, and the rewards for an extra star are fairly small. In comparison if a wall of TW omis makes the difference between win or loss, and (only in my limited experience) that can make the difference between win or loss which has a much bigger impact on rewards than a star in TB. Perhaps for guilds still running Geo or Hoth TB the omicrons still have value in adding a lot to TB rewards, but I’d argue that for RotE the benefit is very minimal, and that’s directly related to the devaluing of CMs. YMMV