you're neglecting one thing, once hired, webby, dora and jaclyn are toast, as are the rest of the rotting air corps with the possible exeption of wanda who might make it to the courtyard before the archons get unleashed on the airspace also of note wanda didn't use ALL the AA on that turn, she fired off most of it so they do have the ability to kill some of the archons with stuff besides the archers and their hitses