I think it's clear from the PV that no one wins and I'm not surprised that Ayu decided to end the PV this way. from what I learned the basic world view in Japanese culture and other cultures in east asia is that the black and white and all they represent co-exist and through their struggles they run this world together, but no side ever wins. also, the good and bad aren't total, there's always a bit of good inside the bad and a bit of bad inside the good. the Yin&Yang symbol represents this world view. if you analyze Ayu's songs you can also find this perception in many of her lyrics
it's my first post here btw, though I've been stalking around for quite a time