Don't worry, Grace gets punished. The temple takes the saint selection very seriously. Unfortunately this will drive her father the duke to do more desperate things...
@TheGodEmperor Seems like it was a personal trigger of hers, so Saintess abused it to make her break out of her funk. And then when she was about to be mortified about her outburst, Saintess defused it with a cunning yet cheerful smile, showing it was her intent to rile her up all along, because that eager energy is what she liked to see. (The wordless communication there was really nice.)