Warrior Nun features a female protagonist suddenly imbued with supernatural powers, often depicted as inexplicably skilled despite inexperience. Key supporting roles are filled by diverse cast members, sometimes feeling like box-checking instead of organic storytelling. The narrative places heavy emphasis on identity, with character traits often overshadowing deeper personal development.

The show reimagines religious orders as progressive, secret societies headed by rebellious women, which undermines traditional religious portrayals. Themes surrounding faith, family, and morality are frequently questioned, if not outright subverted, to fit modern sensibilities rather than respecting historic foundations.

Alternative, non-progressive worldviews are mainly represented as antagonistic or backward, with the traditional church hierarchy often shown as corrupt or out of touch. There's little sincere debate, characters embracing modern ideologies rarely face credible, well-developed counterarguments.