Now luckily we atleast get the KO dialogue. But that alone is not enough. We would also need a hint from the narrator when we enter Minthara's "office" in the Goblin Camp. Without any indication that KO is possible, it's pretty stupid. Since we can only know that KO is possible through metagaming knowledge or by accident.
They should've implemented for Minthara the same safeguard that Mother Superior has in ACT III, where once she drops to 0 HP a cutscene plays out and we get to decide whether to spare her or kill her. Would've been a ton better than the current horribly coded knockout recruitment, where Halsin and her don't even react to each other while sharing overlapping tents.