I specifically mention this because as silly as the 'plot twist' near the end of the film may seem to those familiar with the premise of the story, it is not nearly as silly as the rest of the film-and just as a footnote, this version is campier than Disney's. 'Mulan' is folklore-like Robin Hood, King Arthur-initially popularized as literary fiction, perhaps with some 'historical grounding', but so heavily mythologized that what is 'fact' and what is 'fiction' is virtually indistinguishable (this in turn produces multiple versions of the story, including of course, Disney's campy animated 'revision').
First, let us dispel some misunderstandings.