I think it is important to note that P.P.C.O.M. has essentially broken its promises here.

Broken vows are like broken mirrors. They leave those who held to them bleeding and staring at fractured images of themselves. (pg. 161)

Promises are only as strong as the person who gives them ...

Broken promises don't upset me. I just think, why did they believe me?

Promises and pie-crust are made to be broken.

Secrets had an immense attraction to him, because he never could keep one, and he enjoyed the sort of unhallowed thrill he experienced when he went and told another animal, after having faithfully promised not to.