I once had a very veteran and accomplished partner make that call from the L with me as the trail covering a play at the division line.
A1 dribbled into a trap and picked up his dribble. One of the defenders knocked it out of his hands and A1 then smartly played the ball by starting a new dribble to get out of the trap.
My partner knew the A1 was dribbling, knew A1 ended his dribble, and even knew that A1 dribbled again. He came out to get the call think he was saving the crew. However, the one piece he didn't know was that the defender knocked the ball out of A1's hands.
A's coach called him on it and he stuck with the call, even after talking to me.
When you get on from that far away, you have to eliminate EVERY possibility that might make it different than you think.