UNKNOWN
I'll give the reason as follows:  In urban areas people who were not toeing perhaps the current thinking, people were said to be spies, in certain areas found themselves being labelled enemies of progressive movements and such people were unfortunately banned, but the Northern Province being one of the least politically aware areas, would not just join in that burning of people.  Those who were behind burning of people in urban areas, had to seek what is it that could make the countryside ungovernable and they found this area was very, very ripe.  Why?  This area ...(intervention).