Zero visibility in a matter of seconds does not compute with most people.
Closest I can come to describing it would be to imagine everybody’s headlights suddenly shut off, there are no street lights, no light of any kind, you’re just in a sort of limbo, you get disoriented and couldn’t tell whether you were up, down or sideways. You can hear tires screeching, crashes and people yelling, but you have absolutely no clue where they are.