… and thus emphasize the deeds of Jesus more than the words of Jesus (his teaching). There is no genealogy because people are not interested in the genealogy of a servant.
It was written especially for Romans. The Romans know nothing about Old Testament Scripture. They were not interested in prophecy being fulfilled. The Romans liked it’s straightforward message. The Romans of Jesus’ day were like average business people of today. It is the business person’s Gospel. It is … the book of Mark in the Bible, the first written gospel.