These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Anvilicious: The second half of the play is nothing more than Athena teaching the Erinyes about mercy and justice and not to follow a vendetta blindly.
Ending Fatigue: Orestes is acquitted at the middle of the play and promptly disappears. The rest of the play deals with the Erinyes whining and Athena trying to convince them to accept it.