I've checked all of the refences to the Kobayashi Maru test in TWoK and I could see nothing to suggest that the events in this film could not have been the way it happened in the OS-universe.
By looking at the dialog, I don't really see a problem with Spock NOT mentioning that he wrote that particular test that Kirk took. Nothing said in TWoK would preclude the fact that Spock wrote it, not even the dialog in Spock's death scene (the scene the OP pointed out). He would have no reason in that scene to say that he created it, and in fact he may have never taken it
because he wrote the program.
In fact it seems to me that the
annoyance exhibited by Spock in TWoK relative to Kirk's taking of the test as a cadet makes quite a bit of sense when this new information is taken into account. I think this film's version fits in very well with what we were told in TWoK.
Here is the dialog:
Kirk and Spock immediately after the test:
KIRK: Aren't you dead? I assume you are loitering here to learn what efficiency rating I plan to give your cadets.
SPOCK: I am understandably curious.
KIRK: They destroyed the simulator room and you with it.
SPOCK: The Kobayashi Maru scenario frequently wreaks havoc with students and equipment. As I recall you took the test three times yourself. Your final solution was, shall we say, unique?
KIRK: It had the virtue of never having been tried.
Kirk and Saavik in the Turbolift (Spock not Present):
SAAVIK: Hold please! ...Thank you, sir.
KIRK: Lieutenant, are you wearing your hair differently?
SAAVIK: It is still regulation, Admiral. ...May I speak, sir?
KIRK: Self-expression doesn't seem to be one of your problems. ...You're bothered by your performance on the Kobayashi Maru.
SAAVIK: I failed to resolve the situation.
KIRK: There is no correct resolution. It's a test of character.
SAAVIK: May I ask how you dealt with the test?
KIRK: You may ask. ...That's a little joke.
SAAVIK: Humour. It is a difficult concept. ...It is not logical.
KIRK: We learn by doing.
In the Genesis Cave (Spock not present):
SAAVIK: Sir, may I ask you a question?
KIRK: What's on your mind, Lieutenant?
SAAVIK: The Kobayashi Maru, sir.
KIRK: Are you asking me if we are playing out that scenario now?
SAAVIK: On the test, sir, will you tell me what you did? I would really like to know.
McCOY: Lieutenant, you are looking at the only Starfleet cadet who ever beat the no-win scenario.
SAAVIK: How?
KIRK: I reprogrammed the simulation so it was possible to rescue the ship.
SAAVIK: What?
DAVID: He cheated!
KIRK: I changed the conditions of the test. I got a commendation for original thinking. ...I don't like to lose.
SAAVIK: Then you never faced that situation, ...faced death.
KIRK: I don't believe in a no-win scenario. ...Kirk to Spock. It's two hours. Are you about ready?
Kirk and Spock in Engineering (Spock death scene):
SPOCK: Don't grieve, Admiral, ...it is logical. The needs of the many ...outweigh
KIRK: ...the needs of the few.
SPOCK: Or the one. ... I never took the Kobayashi Maru test ...until now. What do you think of my solution?
KIRK: Spock!
SPOCK: I have been ...and always shall be ...your friend. ...Live long ...and prosper.
KIRK: No!