"The electrical charge helps make the spore become airborne at the slightest puff of air."
I think if you read that article again you'll see that William Patrick said no such thing. The writer of the article wrote that. You add quotes, but the writer did not. It's the AP writer's misinterpretation of what was said. It's a lot of people's misinterpretation and results from the comments about how the spores seemed to jump off the microscope slides, etc.
Presumably, that's also where you got your misinterpretation from.
The fact that spores were difficult to control on a microscope slide has nothing to do with how well it floats in the air.
Ed