agree re policy, but technically... it's possible that today's drones are OK but they're worried about future drones including something new...

If that was the reason, a case by case analysis would make more sense than blanket ban. There’s no plausible technical explanation for this that doesn’t apply to any other devices, components, or software. If it could be made dangerous in theory then preemptively assume it will maybe at some point and ban it.

This is from the same people who brought you “let’s break all your encryption because you might become a criminal in the future”.