Hot take, but I really don't mind the whole ally killing business, especially on Bleed. Both the Kurokumo boys and Manager Don get strong buffs on a certain amount of allies being killed, and E.G.Os with (On Ally Kill) conditionals dish out high amounts of damage, greatly reducing turn counts in any sort of content.
However, the debuffs these IDs give onto their allies to allow for the said (On Ally Kill) effect are always really dogshit. NSang's S3, at full power, does around 209% more damage to an ally on neutral sin, 409% on pride fatal, while rolling a 13. I will not calculate these values, so the actual numbers may be more inflated than they may show up in practice, but there's no way in hell that this skill will hit for more than 100 damage. You will not be able to kill any ally ID with that amount as long as you've been playing properly (winning your clashes). So, in order to utilize this strat, you'll have to have the boss slowly wittle down each ID you want to sacrifice before going for the kill or run the IDs underleveled (which not everyone has).
I hope Ryoshu has some sort of debuff she gives to her allies, let's say "take 10% more damage per status stack (max 10)". Once Gubosang or Contempt Ryoshu kills the ally, the status is spread among enemies evenly, allowing for the subsequent nuke to hit even harder