"Without resorting to murder, I feel like there is no way to kick companions out of the party after a certain point in the game. Not sure if oversight or if there is a reason behind it."
thats actually True.. there are a loot of options to get rid of someone in the act 1 and others in act 2 (wyll is one of then, if yu send mizora back to hells hes gone.)
But from all of then as far as i Know Lae'zel is the Only one with a BUNCH of oportunitis to get rid of her.
(i found at least 4,5 options when i could just Kill her easy. or let someone kill her.)
and i always do nowadays becouse for me her quests from start to finish if yu follow what she wants;;
yu will always endup F. locked out of quests and will shoot on your Foot.
(gale is another one, yu can only get rid of him send him away becouse if yu Kill him.. my friend never try. or just never take him out the stone best option in my opinion. yeah i do hate him a lot..haha )
1 note if they hate yu a lot they leave too.. but thats not a easy thing to do;; will not lie best to just let then die when time comes or get rid of then in act 1 if yu dont care for then.
i always take then for the Xp then i get rid of the ones i dont like.
(by the time i get to act 3 only 1 or 2 of then are alive.. xD)
astarion only have 2 options as far as i beleave in the first Night when he try to bite yu or in act 3 if yu dont want to make hin a vampire lord and dont convince him.. he will turn on yu and if he hates yu its asap.. he will turn on yu with no speach check that was actually what heppans in my first hero journey with him in the game.. i had to take him down at the end.. sorry i was a Pala. i could not create another moster i love heavy role play.
