There pretty much has to have a black person in it, because even though by definition it means any mix of races, we all know (including you) that when someone says interracial (especially in porn) that's what comes to mind. It's not derogatory or offensive it's just for the sake of those who have that sort of interest or disinterest. While you're at it why don't you ask why they feel the need to label her Asian. Is that not offensive out of context? Some people like you make tired hot-button comments like that for attention or to spark tension and conflict where things are really fine because you get off on it or some false sense of superiority and/or misguided morality. If you feel compelled to stir up a racial issue find some place other than a porn site to do it.