One difference between Europe and the US is that we most often have the boat at the club, while I have the impression that a lot of boats are on trailers at home in the US.
I suppose trailering to new ramps outside sailing clubs increases the risk of overlooking a power line.
As far as I remember from the last time this was discussed, the comptip was the result of a lawsuit where a rigged boat on beachwheels was rolled into an overhead powerline.

I dont believe having a comptip is a performance advantage, more the opposite as it is heavier and more flexible than the same alu extrusion (unless you go carbon, and carbon is a very good conductor).

Going out on a limb.. For a 10foot arc to form from a power line, I believe you would need some seriously high voltage and current. The regular 320kV transport line will probably not do it.