The entirety of Charlotte's character and arc came under fire after the airing of the episode, "I Am Anne Frank," which introduced viewers to the Briarcliff patient. Halle Kiefer, a writer from Rolling Stone was confused and displeased with the inclusion of a character that was based on a real historical figure that went through real trauma. In a review of the episode, Kiefer criticized the character. "Next time we see her, the woman is writing in her journal in the Briarfcliff common room, because she's Anne Frank," Kiefer wrote. "Her journal is even named Kitty. Oh lord, Anne Frank was a real person. It just isn't done! Am I being too delicate about this?"
The introduction of this character was brought to Ryan Murphy's attention in an interview with Entertainment Weekly. During the discussion, Murphy explained that having a character that believed they were Anne Frank was telling of the time period the series took place in. "The Anne Frank thing was always interesting to me because after the war...there were many women who came forward after that diary said, 'Well I'm the real Anne Frank,' and they were struck down," he said. "Many of them were found to be mentally ill and suffering from schizophrenia."
While the character was used as a plot device to point out the fact that Dr. Arthur Arden was a Nazi, it might've not been the best way to go about doing so. This wouldn't be the first time that American Horror Story tries to do something weird with a historical figure. This can be seen in the show's eighth season, Apocalypse, when the murdered Russian princess, Anastasia Romanov, was shown to be a witch in a flashback. Perhaps Murphy really does have a knack for turning historical figures into something grander. But in the case of Anne Frank, he may have missed the mark.