Equanimity in the Aghatavinaya Sutta

In the Aghatavinaya Sutta , there are five antidotes given for arisen ill-will(āghāto). I am puzzled because one of these is to develop equanimity ("upekkhā tasmiṃ puggale bhāvetabbā") and another is to reflect on ownership of kamma, which is used to generate (/is the cause of) equanimity as I understand it. I don't understand what is intended by having these separate. Full text follows. > "There are these five ways of subduing hatred by which, when hatred > arises in a monk, he should wipe it out completely. Which five? > > "When one gives birth to hatred for an individual, one should develop > good will for that individual. Thus the hatred for that individual > should be subdued. > > "When one gives birth to hatred for an individual, one should develop > compassion for that individual. Thus the hatred for that individual > should be subdued. > > "When one gives birth to hatred for an individual, one should develop > equanimity toward that individual. Thus the hatred for that individual > should be subdued. > > "When one gives birth to hatred for an individual, one should pay him > no mind & pay him no attention. Thus the hatred for that individual > should be subdued. > > "When one gives birth to hatred for an individual, one should direct > one's thoughts to the fact of his being the product of his actions: > 'This venerable one is the doer of his actions, heir to his actions, > born of his actions, related by his actions, and has his actions as > his arbitrator. Whatever action he does, for good or for evil, to that > will he fall heir.' Thus the hatred for that individual should be > subdued. > > "These are five ways of subduing hatred by which, when hatred arises > in a monk, he should wipe it out completely."