It's mostly the cake thing, and how Pilar Pineda is already standing behind you inside the heavily warded area within the Palace's Forbiddance, and nobody has ever seen her teleport.
But it's also that she went to Elysium, somehow; and apparently voluntarily came back; and now she's skipping through the temple halls on the way to the torture chamber, to assign her own punishment for heresy; and then getting tortured, which she seems to take pretty well; and in fact starts to sing a song afterwards about how being properly punished can make you feel better, until a priest slaps her to shut her up (which she obeys immediately).
And if you're worried about that powerful Chaotic Good aura she still radiates, well, nobody except Aspexia Rugatonn is authorized to correct her on matters of faith.
Why? Because Pilar Pineda is one of the Project Lawful girls, that's why. Now shut up. You don't inquire further about Project Lawful.