Hurfworld? No - Erfworld!

[Loyal]

The thing is, he doesn't quite know what she's capable of right now. After everything else that's happened (and given how Parson reacts to the rules, conciously or otherwise), Stanley believes he is losing power. While he is content, he will probably do nothing to Wanda, but if she turns obviously hostile (by, say, croaking and decrypting the one guy who could possibly help Stanley if Wanda DOES turn), that's going to shake him into action.

Wanda, who knows Stanley better than anyone, is surely aware of this. Whether she is content to remain in his service or not, ruffling his feathers while she's in the middle of leading a war charge would be highly inadvisable.