Since we are throwing out tibits...
The original story was supposed to have Spock killed (for real) about a 1/4 into the picture. The rest of the movie was about "Let's get the bastards who killed Spock!"
However it was leaked to the public early on that Spock was going to die in Star Trek II. And the rumour (I don't know if it was ever confirmed) is that Gene Roddenberry himself leaked the information as "revenge" for killing off Spock, and having all control of the writing taken away from him.
So they added the Kobayashi Maru opening. Spock "dies" in that opening (along with... just about
everybody :lol).
The "hope" was that audiences would assume that the rumour of Spock dying was actually all about the simulated Kobayashi Maru test. The audience would think that they were "tricked" into believing that Spock was going to die and that the rumour was only "half" true (he "died", but it was just an act). They would breathe a sigh of relief and sit back for the picture.
Then the "real" death scene at the end would be a total surprise as the audience by then had become comfortable with the belief that Spock wasn't going to die, because he had already "died" at the beginning of the film.
I believe the entire ruse worked when the film premiered.
Kevin