Great episode with lots of nice dialogue. You can really tell when Martin is writing, as well as Cogman. Both tend to have really compelling dialogue in their episodes. I thought Ran's episode was kind of poorly argued this week, no offense. I too have complained about the lack of subtlety in the show but I felt it worked well in this episode. Also let us not forget that in the book Tyrion notes that Oberyn demands justice every single time he sees him. That's not what I would call subtle, and given that type of behavior I could definitely imagine Oberyn referring to Cersei as he did in the episode.