This is not a 100% bet. Last year I bought a ticket at aeroflot.ru. Aeroflot Customer Service told me I have to contact the ticket agency, they didn't want to help me. After I told them I bought the ticket direct from aeroflot they refuse this and still told me they are not the seller of this ticket, so finally they didnt help me.

Expedia is now just the man in the middle, they just have work with me and cant earn money to this, but they also dont loose money if AF would rebook me to another airport.