This is a small bit of worldbuilding in a subset of the Imperial Radch universe. The references to the Aztec ball game (or at least our modern perception of it) were very clear and fleshed out nicely with detail from the in-universe personal nomenclature. I do think I like Leckie best at the novel or series length, however, as it gives me more time to become unreasonably attached to her characters and all of their interpersonal and political drama.