I think the point was that since they banned gas leaf blowers, they might as well have banned all leaf blowers, leaving nothing but hand tools. Of course someone could invent a hand-cranked blower or something... would be interesting to see exactly what loopholes in the legal wording people would find.
I'd just use air from a motorized large volume air compressor with a long spray attachment. Technically, not a leaf blower. Ahh malicious compliance!
What? No. There's still electric leaf blowers allowed. They exist and work fine (but are a little more expensive)
Yes, I know. Parent was proposing a hypothetical scenario.