Word has also gotten around the Project that Sevar is secretly the daughter of Infrexus.
She's made a point of being merciful under carefully defined conditions of mercy, broader than usual. It needs to be known, not just rumored, that Sevar personally tortured this fool, that the Chosen's patience is in fact limited. It needs to be explicit under what conditions her offer of mercy was exhausted, and that it didn't consist of this man, say, turning her down when she demanded sex from him. Subirachs doesn't even need to have heard that rumor to know it exists, spontaneously materialized into Golarion by whatever ethereal entities produce them from apparent nothingness.