I have heard some fascinating theories that since Trump got in, they've actually been spraying different things for entirely different reasons, to blunt the impact of these sort of storms. I have no idea if that is true or even possible but if so I wouldn't put it past White Hats to do so. I mean if you extrapolate from there it would be possible it was White Hats the entire time knowing that some negative health effects would be better than the grid going down entirely, phones and cars fried, etc.