Is it strange that the cult is there despite Fanim rule?
Idk why i didn't notice before, but Psatma banishes the false oracle because Nanaferi occupies the office of Oracle for Yatwer.
In this part, its mentioned about the attempted assassination from the Anagkians--perhaps the whole thing was cooked up by Kellhus or Maithanet to give them the excuse to kill the cults leaders.