The season features Nicole Maines, a transgender actress, as Nia Nal/Dreamer, the first transgender superhero on television and a core member of the Super Friends team, with the character's identity serving as a highlighted element rather than incidental. Plotlines explicitly confront social justice issues including prejudice, racism, and intolerance, drawing direct inspiration from the Black Lives Matter movement and incorporating dialogue on systemic barriers faced by people of color. Episodes include scenes where characters lecture on Black voices being ignored or sidelined, framed as central conflicts.

Broader themes emphasize empowerment through identity, critiques of power structures, and normalizing non-traditional identities amid superhero action. Audience reception includes widespread backlash labeling the show overly 'woke' or SJW-driven, with complaints that messaging supplanted coherent storytelling and contributed to declining viewership. Creator and producer statements tied anti-alien discrimination arcs to real-world political opposition, underscoring activist intent. These elements make progressive framing a recurring driver in Season 6 rather than background flavor, elevating the score despite the show's established superhero genre.