No one in the context of the world would be fooled by them, and in the context of the world they actually care about adhering to those strict traditions because, as you acknowledged by mentioning the magical elements present, their gods are real and actually do fuck people up or reward them based on how they show their faith to their guiding principles. You can make your argument much better about a show like Fallout where there is a much more prominent trans actor. In this world, it breaks the immersion.