Remember three things.
- In the original treatment for the series, from which "The Cage" comes from, Roddenberry had the Number One character as being the cold logical character, with the Spock character being less fleshed out and a smaller role. This is one of the things that NBC objected to, and the two characters were combined with Number One's personality grafted onto Spock.
- One of the other ideas that Roddenberry had was that he could save on writing, because there was so much pulp sci-fi out there that he could pick up for low cost and then just morph into Star Trek. This created the Spock character in many ways, because what ever characteristic an alien needed for a story, they just used Spock. So he has super strength, space hippie beliefs, multiple afterlife beliefs, devotion to logic, weird male heat based sex life, etc. These were not a concuss choice for a character's back story, but just evolved as they went along. In reality, if they had proposed Spock as he was in writing on day one, no one would have taken it seriously.
- I am as guilty as the next person, but this is a TV show. It is not a history documentary. "Canon" is all fun to argue about, but at the end of the day, they can make up whatever they want to.