Welcome EA916. No I don't think prophecies are important. Do you know of a prophecy that has ever come true? People have been giving prophecies for a very long time. In Ancient Greece the oracle or Sybil would give predictions for the future. Look up Nostrodamus who lived in the 16th century and fortold the future. It's not limited to the Bible.
I think when people are living in difficult circumstance, economically, personally or with health problems they have often looked to something supernatural for help. Now we look to scientific answers and modern medicine. Particularly in the past people were at the mercy of disease and cruel political tyrants. Happily the world has changed for the better for many of us. Where there are still terrible diseases and political tyranny we can help through international charities.