Isn't the part after that Barbie rejecting living in the Barbie world? Like, she recognizes that that world is fake and chooses to live in the real one instead. That felt more like the "point" of the movie to me - stop playing with dolls and thinking that there's a simple solution to patriarchy. Unfortunately there was no scene where Barbie joins a Maoist guerilla group but maybe they're saving that for the sequel.