He is keeping a copy of this. A good souvenir to frame on his wall, when he's left, if the constitution is the kind that makes it ironic.

He's looking through the pamphlets to try and sift out some reasonable, non-heretical ones to send to Joan again. He saw the Geb version of this pamphlet, though of course he didn't take a copy for himself, and now apparently there's a copycat. 

He'd have expected this sort of thing from commoners too ignorant to really understand the law or too stupid to realize that the Crown's enforcement is capable of understanding subtext. He really would not have expected it of wizards. Joan has never been particularly possessed of good sense but if you showed him a copy of the incitement decree and a copy of this pair of pamphlets he'd be able to put two and two together.

She bets that this one will in fact be declared by her mother to be on the right side of the Galtan-spirited line but she drops by in the night with a name and address anyway. "The people of Westcrown may be deficient in many virtues but their bravery, stupidity, and creativity in finding ways to be bravely stupid can hardly be chastised."