Luke 8. Not to tell anyone what had happened

Luke 8:56 NIV
Her parents were astonished, but he ordered them not to tell anyone what had happened.

In many time Jesus told the person He healed not to tell anyone. 

But the demon posses man Jesus did the other way round,  ask him to go tell other how God love him.

Luke 8:39 NIV
“Return home and tell how much God has done for you.” So the man went away and told all over town how much Jesus had done for him.

Google.

Lay man will think that if Jesus was famous for his miracle, not will be very easy for people to come to him and believe in God.

But then that will be the focus. Miracle. But even though a man is healed it will die one day. What Jesus wanted is eternal life for all.