I'll say one thing about kulkaris: they're persistent. Even thought they've been argonified, they still have {@LinkCreature:46#202#argonomorph kulkari shamans}. I don't know whether they still have a religious role, but regardless, they need to die.
It was probably a blessing to kill argonomorphed shamans. It's not like they can "talk to the spirits" or anything like that anymore.