I think a lot of you may be missing a point here.

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The sparky then wrapped his arms around the thighs of the victim, and tugged.

The first rule of rescue is to not become the second victim. As admirable as this guys actions were, it might have ended up with two fatalities.
As an employee of a POCO, I've seen cases where rescuers were almost killed trying to get someone out of a car that had hit a power line. In one case, it sent both of them to the hospital.