Yes, I would definitely like to see the "delicacy" defined.
I suspect that, publicly, Fr. Le Roux would say "delicacy" would mean to be delicate when mentioning anything that can be perceived controversial or upsetting to your audience (the laity, school kids, non-Catholics, Novous Ordo Catholics). Or in other words, do not say anything that will hurt someone's feelings (especially if they are a benefactor). Instead of "mortal sin", say "big mistake", instead of saying "your dress is to tight" say nothing!
However, if the person is a Resistance or other threat to the new branding image, then fire away!