For starters... lightning is not human-initiated. And planes do typically have massive problems when they get struck by lightning.
I was referring to the effect the flash has on pilot vision. The aircraft doesn't care why or how the pilot was blinded. If the flash from lightning (or misaligned high beams or any other natural or man made source) can cause temporary blindness then safety can only be enhanced by securing the aircraft/pilots against all light sources strong enough to cause problems. Regulating pen lasers is an act of political theater. Kind of like an optical TSA.
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