Probably stock collapse. If your going for a massive social and societal upset. You generally want as much chaos as possible. And that is ultimately what the storm would be.

Prevents coordination of responses. An enemy launching a disjointed response is easier then an enemy with a united front. It also keeps the general population confused and on the proverbial back foot. Which again is beneficial as it keeps people from organizing well-intentioned but ultimately harmful activities. Because for all intents and purposes. Supposing posts play out exactly as written. It’ll look like a Coup de Tat to the general population at large.