True, the pole in the dramatization may not carry enough voltage to energize the ground for the maximum distance.
However. This is supposed to be a safety awareness video, not a documentary. I can easily imagine a situation in which there is saturated soil (a ditch, for example) and someone who has successfully exited the vehicle then taken a step and managed to complete a circuit with wet shoes and wet ground.
As Javadog said you can test your theory.
As one of the guys at the power station said, "Les. There's stuff there that can kill you."
Best
Les