Can understand why people think its setup , it looks and sounds incredulous and improbable.
Just one thing really got my stomach turning, when the one in the green sweater had been hit they for a moment zoom in on her and you do see her legs are ..well I don't know any other term to describe IT ... those legs DO look as if they just been scrambled under the weels of a truck. You could see the indenture above theknee where the leg makes the most unnatural dent. If that is setup , that was very believable.

People s ay they where foreign but they sound pretty English to me tho.