No one likes corrections, and many investors are downright afraid of them. No one likes seeing the value of what they own going down, even if deep down they know it is temporary. This is the market risk that many investors just do not want to experience. However, there is another risk which is less obvious but far more serious: failing to grow your money at the rate of inflation.
Little things make big things happen, but some details are more important. To the market, the mere idea of oil in the future made a difference, while the detail on timing did not.