Hey Mom,
You remember a hot air baloonist a few years back, I think it was here in Texas, who got caught up in high tension lines? That went very badly, but I believe the occupants survived. In all candor, this couple in Germany was extremely lucky.
As far as shutting down the power, it has to be sequenced very carefully when this much electricity is involved. Failing to do so can cause cascading failures throughout the grid. You'd think this would take top priority, but if the power was being supplied to infrastructure items like communications, traffic lights, etc., they might want to think about it awhile before actually pulling the plug. Just a guess.