It took me three run-throughs of the video to finally understand: 5SOS doesn't mean to show women as objects in this video -- it's supposed to be empowering. "Good girls" are society's image of what women should be.
I wear slips under dresses and send hand-written thank you notes. I don't discuss bodily functions in mixed company and consider it an honor to be asked for a recipe after a dinner party. In sum: I was raised a good girl. And it is damn frustrating.