Something I would like to see with the new Question of Loyalty is different versions of the event based off the Diplomatic Profile Traits that faction has, as well as other factors from Nexelin since it's the other major diplomacy overhaul in modded starsector.
For example factions with "Pacifist", "Submissive", "Weak-Willed" or "Helps Allies" is probably not going to be as brutal as say someone with "Predatory", "Paranoid", and "Irredentist". Something to make those traits matter a bit more in the event would be nice.
Additionally, if a faction is notable war weary that should factor into the event as well, so it's much better to declare independence while your host faction is weak versus when it's strong. This could also be turned into an even greater malice if the faction has the "Stalwart" or worse the "Forever War" and "Monstrous" traits. I'd like there to be a bit more give and take like being able to make concessions to appease the faction instead of having an all or nothing sort of approach. Like for example you could say as part of the terms of peaceful concession with the Hedgemony have to maintain the following rules: Must join the Hedgemony's Alliance, must not have any AI Administrators, No AI core Use, No Free Ports and have to transfer over some amount of collateral like Blueprints, VI and V Surveys, Colony Items, Research Databanks (Maybe shared research if the faction has a focus on it) or even some colonies entirely. Enough to pain to feel seditious but maybe not enough to go straight into trying to saturation bombard each other off the sector because while that can be fun it does get old especially if you're wanting to do a more diplomacy focused play-through. I happen to like working with the Aurora Federation so having options besides go to war with them and make them go from vengeful to cooperative by handing over 50 high value prisoners feels a bit game-y.
Could also extend the "Declare Independence" to say Surprise Attacking your host faction, like surprise invasion/bombardment of the homeworld if you really wanna have your starsector villain arc and deliberately make your act of independence as brutal as possible..