Easily Buried

In an episode of Doctor Who – An alien ship crashed in London. Downing Street turned upside down. Big spectacle ensued.
At a church organized charity event, a devote Christian slapped her lifelong best friend at a moment of extreme rage….
The very next moment, all were erased from the earthlings conscious awareness.
How could it be? And why?
The clickable post title will take you to my attempted explanation.