A fairly standard Bethesda error, Inaza Kaisir has two sets of dialogue in response to being asked "How do you think this calamity will impact the faith of the citizens?" one of which is supposed to play during the main quest and the other after it, but the conditions on both are the same so the second never plays. Picking this dialogue option results in no response after you have finished the DLC.
[INFO:0110B3A8] of dialog topic [DIAL:01103607] needs its comparison value changed from 0 to 1. Fix tested both after picking the serpent's crusade option and also rejecting it.
1.14.74.0
Yes
Finish the main Shattered Space questline, where you talk to the council members to decide which house gets put in charge, then talk to Inaza Kaisir and pick the dialogue option "How do you think this calamity will impact the faith of the citizens?"