Like I said, Brom doesn't know the dynamics of the church, and he's too new to be in the inside loop. Being in Allison's camp, he also doesn't have access to members of the church that are not sympathetic with Allison's situation. Allison may or may not face a Magistratum trial. But whether she does or not will have absolutely nothing to do with Brom's proposed case, or any attempt to overload the system.
Katayanna however is in the inside loop, and definitely in the Allison camp too, and has successfully steered all discussion to the matter of priests and infiltrators whereas the charges of heresy against Allison have now zero part in discussion. Rather convenient, no?
