Honestly at a loss at what the writers are doing with Kwan, you can't make a character so deeply unlikeable by accident can they? Is her behaviour supposed to be seen as contemptible, or is this some strange perception of how a Young Adult Girlboss should behave?
Madrigal as a whole is stupid and pointless, with the only reason it exists at all needing to be finding the first artifact.
Supposedly the UNSC is terriblebad. Colonies are fighting back, and Madrigal does so because (they actually say this) they want more money for the deuterium they sell. OK, deuterium can expensive to process and hard to extrac- just kidding! The shit literally grows on trees, and all they have to do on this magical planet is pick the pods and then put the product into containers for shipment.
This matters because "they won't pay what we want" is bullshit, and Kwan's family is (was) rich because of selling deuterium.
Now, back to the rebellion. As soon as Kwan's daddy, the governor, dies, a new guy can just sweep in and take over. We can guess this overthrow is supported by the UNSC, but we actually don't know that from anything seen on screen. We also have vague phrases that imply that the entire multi-colony war just died overnight with the death of this one man.
So, the UNSC is supposed to be this looming monster, but... we never see that. Sure, the governing council is all made up of admirals, and that tends to happen in junta dictatorships, but they are fairly benign. Yeah, Halsey is fucked up, and they permit her to do crazy things... but she also has a history of delivering the goods. Nowhere else does it seem like the polity is horrible.
Kwan is raised as a spoiled rich girl who also happens to be a "rebel" who kills off UNSC marines because her family could be more rich (supposedly, since she has never shown herself to do anything other than cower; her boasts seem to be as empty as her Charisma stat). She never accomplishes anything, so she tags along waiting for a story to happen. If she were the one who activated the artifact she would have a purpose for existing, but instead she is fighting because... she just really hates the UNSC and Madrigal's new governor. She is a zealot, but she doesn't even seem to have a real motivation beyond murdering people who upset her sensibilities.
Add in that she just orders people around, and when they tell her "no" she tries to buy them off instead, and she is truly a terrible character.
Now, I expect from this latest episode that some things will change, but not for the better. For example, I doubt that her now being bankrupt and actively hunted is going to suddenly make her humble. If that does happen it is still bad writing that her personality would change 180 degrees within a matter of hours.
No, what I expect is almost as dumb, with her learning her daddy was a bad guy. Which... yeah, we totally suspected that when his only motive was to burn his wealth on fighting a far more powerful entity to force them to make himself richer. But I suspect that the "mystics" he met in the desert that fundamentally altered his personality was a part of the Covenant.
Yeah, I expect that he was a species traitor fighting for the aliens that want to utterly destroy life in the galaxy with an ancient super weapon. I suspect that he was the one looking for the artifact on their behalf. I suspect that despite having an active Covenant presence on Madrigal we are going so see that they brought in a raiding party for no damn reason, and with them the Spartans in tow (though we have no idea why the super soldiers were actually deployed there in the fist place).
I expect all this will happen so that some writer can get his big payoff with Kwan. After all of the stupidity and whining, I expect her to suddenly go "OMG, are we the baddies?" and maybe start thinking about not fucking with the only force fighting for humanity's survival. Maybe she will locate the race traitor girl for John, or even kill the traitor herself at the end of the season. I don't know how, I just expect to have a weak payoff for the punishment of having to deal with this character that has no real purpose for so long.