Well, you can't change your affinity. No matter how much you tweak with your points on console. You can edit DIK points but, affinity? No.
I have to disagree. You can simply set your affinity any time with the string variable "affinity" by setting it either to u'DIK' or u'CHICK'.
...at that point in the game as it leaves the central story beat of season 1 - the MC entering the Uni and joining the DIKs - unresolved
I didn't quote your entire post to avoid too much text. I write too much already.
I wouldn't compare BaDIK to a Star Wars movie, and Episode IV in particular. First because the story in EpIV had to look somewhat "finished" as it was Lucas's first movie and he had to prove his point before being able to make the other ones. I'd rather compare it to Episode V, where Luke (MC analogy there) learns about his past (here it's Maya's past) the hard way and prepares for the next step in his fight.
However here the situation is different, there is a second element in addition to the epiphany, which is choosing a path. The last episode of Season I, and therefore the season itself, isn't about getting or not the jacket, but about choosing your path and making the last decisions out of it.
I have a feeling that Season II will not be either about integrating (or not ?) the DIKs fraternity, and that the Holy Graal won't be reached until Ep6-7 (second or third episode of Season II). Why? would you say. Because the start of Season II will be Quinn's great moment of treachery against one frat. She won't be able to keep her double play much longer and that will explode, postponing the MC's receiving of the jacket.
Of course that's how I see the continuation of the story and you are free to disagree.