Lambach
Arcane
Are you? How do you not see that if a character isn't touched for most of the game they can be replaced?
At that point in the game, the plot called for a character that would be a high-ranking military officer or something similar, holding what's left of the resistance together. I'm not sure how the plot that was set up as-is would work without such a character.
As I said, you can have literally any--wait, I'm speaking to an autist who will probably strawman and say "durr you can't replace them with a baby, can you?!"--almost anyone with the sufficient strength replace them in the story and it would work.
Hoo wait, so when you say "replace", you mean just keep more-or-less the same character that serves the same function in the story, but is just race and/or gender-swapped?
Sure, by that definition, you could "replace" the Orc and it would work. But that would neither improve nor worsen the quality of the writing. The fact that she's married to a troon does not have any impact on anything in the story. If she were a heterosexual white male, that would not impact the story in any way. This is not a matter of good or bad writing, it's just a matter of you not liking lesbos or Orcs (or both).
So you can wander around said city all day fighting demons, but not cross it or leave it? Ok.
Demons are generally not considered the smartest creatures in Pathfinder, but I'm sure even they realize that it's very important to control who enters or leaves an occupied city and would therefore have pretty tight security around the city borders.
Strawman #2. You don't need to join them to work with them.
Or you don't need them at all in some cases. What purpose would that additional faction serve? It would let you get away from the troon? Too much effort for too little payoff.
Except the Bhaalspawn's motive doesn't have to be to recue Imoen, as I discussed earlier.
Again, you're destroying your own argument with that. Stop it.
It could be to save Imoen or it could be to gain power from Irenicus.
Just like the Commander's motives could be to save people from Demons or gain more Mythic power. What the fuck is the difference?