I recently realised one of the reasons that I dislike Halsin - his voice sounds like Blackwall from DA:I. They are different voice actors though.
You can tell how much thought Larian put into things by looking at Khaga who ends up just standing in the Hollow doing nothing and with nothing to say. IMO she would have made a more logical companion than Halsin.
Does Khaga have any reason to fight against the absolute?