The standout factor is the prominent role of Nia Nal/Dreamer, portrayed by trans actress Nicole Maines as TV's first transgender superheroine, with dedicated storylines confronting transphobia—including an episode where a man attacks her roommate specifically for targeting Dreamer as a transgender hero and pressures her to quit. Additional layers include a diverse main cast featuring Black actress Azie Tesfai as Kelly Olsen and other non-traditional identities, alongside recurring themes of fighting hate, acceptance of differences (often framed through alien metaphors), and identity exploration that extend from prior seasons.

Audience reactions include backlash labeling the series overly SJW for inserting real-world social issues into superhero narratives. These elements influence character arcs and specific episodes without collapsing the season's broader plot, placing the intensity in the significant but not foundational range.