The special miracle here is not the removal of leprosy. Christ healed the Samaritan to the degree that he recognized not only his new found health but the healer.
All tagged Gentiles
Christ's Rejection at Nazareth
Placed at the front of his gospel, Luke actively sets the precedent — the Gentiles shall be blessed.
An Introduction to Luke
Christ's message and purpose is no different then any of the other gospels – the gospel remains the same. However, there are noticeable alteration to the details of Christ's audience that are worth noting.