Later in the 3rd quarter the ball clearly came off a Hawk's players boot and landed over the line. Stevic indicated a throw in until he was persuaded it was a Freo free kick by the boundary umpire.
You do realise that the first boundary umpire signaled throw in and stevic just responded to the call made by the boundary umpire until one further away with a better view came and over turned it.
EDIT: someone beat me to the punch