That is why people will take care if they find a money bee comb on a tree. There are some trained people who can manage the situation. In our house, there was a hiney bee comb on a tree. The father of our servant maid is trained in extracting honey from those combs. He came and extracted the honey from the comb.
In this particular case narrated by the author it disturbed the natural harmony that existed between honey bees and the nature. It resulted in the attack by honey bees on the mourners. The moral of the story is that as far as possible we should not disturb the natural harmony existing around us in various forms. Pollution of all sorts including noise pollution is detrimental to the environment.
Knowledge is power.