They are acting in ignorance and the Savior understands. Please understand, ignorance is not bliss. What they are doing is wrong and sinful. But their ignorance does touch the heart of the great Shepherd. Jesus understands that anger is not what these people need.
Anger escalates trouble.
These people need Grace. The wandering sheep need a Shepherd. Jesus gives us a great illustration of His love. These words are spoken not just for the crowds that were watching Him die. They were also spoken for us.