I think the Ad has nothing to do with racism at all!
Through history, we have had so much rasicm and segregation and it has dissolved slowly through time, now, it doesnt make a difference. I think this signifies racial equality..."But how? the white chick is protrayed as the powerful one while the black model is being passive? HOW DOES IS THIS A SYMBOL OF RACIAL EQUALITY?"... Well, I think we are at a time where racial issues (especially between white and black) have been dissolved almost completely, Black people are not a minority anymore. So the taboo of tiptoeing around things like that shouldn't be problem anymore... I think what sony is trying to say is that "We live in a time where people wont say, omg! this is that protraying white people as superior to black people?, but its just "Oh the white chick resembles the hot new colour taking over the new one and the options are there". Nothing to do with racism, but is has everything to do with human diversity and it doesnt seem to be a generlazing label. Enjoy the creativity and genius of the ad, we don't live in ancient times anymore.