John introduced the logos as you say. How come Mark wasn't aware of that if they were both inspired? Was it not that important at that time that the revelation waited 40 years and picked that ideal time? Did the writers of the gospels tell you this or are you making assumptions?
The discussion is not about people reading the book and having problems or not and its not about who you stand with. Thats all good and fine. This is about going to the truth.
The title Logos is about the Divinity of Christ and His role as a Mediator between man and God. It is simply expressed more explicitly whereas Mark is implicit. For example In Mark 14, Jesus stands accused at His trial before the High Priest. “Again the high priest asked him, "Are you the Christ, the Son of the Blessed?" And Jesus said, "I am, and you will see the Son of Man seated at the right hand of Power, and coming with the clouds of heaven” (Mark 14:61-62).
In Mark 14 Jesus is likely referring to the book of Daniel that states, “I saw in the night visions, and behold, with the clouds of heaven there came one like a son of man, and he came to the Ancient of Days and was presented before him. And to him was given dominion and glory and a kingdom, that all peoples, nations, and languages should serve him; his dominion is an everlasting dominion, which shall not pass away, and his kingdom one that shall not be destroyed" (Daniel 7:13-14). In this reference to Daniel's vision, Jesus is identifying Himself as the ‘Son of Man’.
The
Son of man’ a person who was given “dominion, glory, and a kingdom, that all peoples, nations, and men of every language might serve Him.” The High Priest, who immediately recognised Jesus’ claim to divinity, tore his robe and declared Jesus guilty of blasphemy (Mark 14:63-64).
The title "Son of Man" features many times throughout all four Gospels. It is in part a Messianic title (along with Son of David) and relates to the Divinity of Christ (along with the Son of God title).
The phrase "Son of Man" is used of Jesus only a few times outside of the Gospels themselves (Acts of the apostles 7:56; Revelation 1:13; 14:14). Given its scarce usage by the early apostolic church, it is unlikely this title would have been read back into the lips of Jesus if, in fact, He had not used this particular self-designation. In using this title established that Jesus considered Himself to have everlasting power and a unique authority beyond that of a mere human being.
Sometimes, it was Jesus’ actions that revealed His identity. Jesus’ healing of the paralytic in Mark 2 was done to demonstrate His authority and ability to forgive sins (Mark 2:3-12).
So the Logos is simply expressed differently in the Gospels of John and Mark. The images within both books compliment and contrast each other to enable a better understanding.