I've updated my comment above to say "and" instead of "or" as you're quite correct. From the timeline of events (surviving initial onslaught, then falling over

I've updated my comment above to say "and" instead of "or" as you're quite correct. From the timeline of events (surviving initial onslaught, then falling over) I'd assumed that was a large part of the problem, people sitting on a live-updating map.