- Anvilicious: The scene where the Romans and Picts run into each other again, this time able to understand each other; its moral of "both sides are equally childish" is pushed quite plainly into viewers' faces, particularly when one takes into account the high polarization of western political discourse at the time of the episode's production and airing.
- It's the Same, Now It Sucks!: Many of the tropes used in this episode were already done in Twelve's more memorable episodes, such as "The Zygon Inversion", "Face the Raven", and even the immediately-preceding "Empress of Mars". Likely because of that, critical and audience reactions were tepid, with a general consensus of "solidly executed, but nothing special", while overnight viewing figures stand at 2.89 million, the lowest in the show's fifty-year history. (It has been theorized that this episode was originally intended for an earlier point in Series 10 — most likely between "Knock Knock" and "Oxygen" — but moved forward to allow more downtime between the angsty Monks Trilogy and the devastating Season Finale two-parter than just "Empress of Mars" would have provided.)
- So Okay, It's Average: While the episode isn't considered the worst of Series 10, it is far from the best. What doesn't help is that not much stands out about it and it comes right after the similarly-themed "Empress of Mars". Fans of the Classic Series tend to like it more than New Series-only fans do — not surprising given that Rona Munro actually wrote a Classic Series script, "Survival".
YMMV / Doctor Who S36 E10 "The Eaters of Light"