The season continues and deepens Alex Danvers' lesbian storyline with her relationship and eventual breakup with Maggie Sawyer (a Latina lesbian character), including explicit exploration of family acceptance, differing views on children, and identity. The show maintains a consistent feminist lens on Kara's empowerment and team dynamics, alongside diverse casting including Mehcad Brooks as the race-swapped James Olsen.

Alien discrimination plots function as overt metaphors for real-world social issues, delivered with limited nuance according to audience feedback. These elements drive emotional subplots and reception among certain viewers but coexist with traditional superhero action against Reign, preventing the ideology from becoming the foundational driver. Backlash from portions of the audience highlights perceptions of inorganic political messaging and preachiness, contributing to the score without reaching levels of source-material alterations or identity politics as the central conflict.