The Tale of the Whispering Walls - S2-E7
Factual error: Betty Ann is supposed to be telling this story on a Leap Year night with a full moon. While it's necessary for the plot, the most recent Leap Year with a full moon was in 1972, and is calculated to happen in 2048 next.
Answer: They may have quit because they experienced lingering fear and anxiety after eating the soup, regardless of whether they remembered anything. As everyone was only limited to one bowl of the soup, Vink fired anyone he caught trying to have more. Some employees may have quit out of frustration over the restriction. It also serves the plot to have different characters experiencing the effects of eating the soup.
raywest ★