I think it is not even close. She was groped and touched. That is sexual assault. It is not rape, but there are cases of Peace Corps volunteers getting raped. Chucking that up to culture is, perhaps trying a little too hard to defend it. If that is is the culture (I imagine it is just "culture" in poor and uneducated parts, much like it would be in a trailer park in Mississippi perhaps) well then fuck that culture it is wrong.