Incorrect.
Portraying Jesus as supernatural isn't just an element in the Gospels; it's fundamental to what the Gospels aim to convey about his identity and purpose.
The Gospels make a deliberate and central effort to portray Jesus as a supernatural being, highlighting his divine nature through miraculous deeds (healings, nature control, resurrection), his unique divine conception, and his identity as the Son of God, with John's Gospel emphasizing his pre-existence and deity most strongly. While different Gospels emphasize different aspects (Matthew as King, Mark as Servant, Luke as perfect Man), all present a figure whose life, actions, and claims transcend the ordinary human experience to reveal God.
The majority of mainstream biblical scholars agree that the authors of the Gospels (Matthew, Mark, Luke, and John) made a concerted, intentional effort to portray Jesus as a supernatural figure.