The narrative explores ethics of mortality, resource scarcity, and human depravity through plot points like Category 1 patients being incinerated alive and overflow camps, drawing Holocaust parallels without framing them as contemporary identity politics. Societal collapse themes and camp imagery stay fixed on universal human ethics rather than systemic critiques, keeping progressive messaging minimal and incidental to the premise. Captain Jack Harkness's established bisexuality features in flashbacks to his 1920s relationship with Angelo Colasanto in the Immortal Sins episode and explicit scenes, consistent with the series' prior seasons rather than new activist emphasis.

Mekhi Phifer plays original character Rex Matheson, a lead investigator central to the CIA storyline, fitting the modern US co-production setting organically. These elements contribute to the low score because the queer storylines remain character-driven continuations and the casting introduces no forced identity focus, allowing the core plot to prioritize ethical dilemmas over ideological messaging.