All these metaphors clarify Season 5's thesis thus far: that Jack can live as a good man while killing the human enemies he needs to. The logic makes sense, with one fatal flaw: Jack needs a foil and doesn't have a great one yet.
Jack's ultimate foe Aku has shown up in two of the episodes thus far, the first was basically a cameo and the second was a sad introspection from a depressed wizard. In his absence, we've seen Ashi built up as the de facto leader/spokeswoman of the Daughters, a killer with her own childhood trauma, violence, and point-for-point comparisons to Jack. She and the other Daughters made for interesting opponents, but Jack dropped her off a cliff in this episode after a death rattle that felt straight out of creator Genndy Tartakovsky's Dexter's Laboratory. Watching her fall made me laugh, as opposed to the gut-wrench of Jack's first kill last week.