In its attempt to be novel and politically correct, the movie turns out to be dull, uninspiring and just another period factory-churned slash-and-hack film. In short, a dime in a dozen these days. All the best parts of the original Disney Mulan: the songs, the joyful atmosphere and the colourful characters, are gone, replaced by a shadow of what they were.
As the saying goes, when you try to please everyone, you end up pleasing no one. This is exactly what happened here.