Having said that, the whole "I never faced death" seemed off. He's faced it and suffered great loss in the time we followed the character. I get that Kirk couldn't bluff or fast step his way out of this. Someone very dear to him had to die and, according to the script, this is his apparent first time dealing with that loss. Not counting his brother and sister in law within hours of each other, family on Tarsus IV, women he loved, old friends and so on.
I think there are two reasonable explanations for that, a real world one and an in-universe one.
The real world explanation is that bringing up Kirk's brother Sam, the Tarsus IV massacre, Gary Mitchell, Edith Keeler, etc., would just confuse the majority of the audience and dilute the drama of the moment. So of course the death of Spock is the worst tragedy Kirk's ever experienced. Because if it isn't, why are we even telling this story?
Meyer says in his commentaries for both
Time After Time and TWOK that the protagonist has a moment near the end of the film where he literally says, "I know nothing." In TWOK, it's when Kirk's mourning the death of Spock. In TAT, it's when H.G. Wells is trying to save the woman he loves from Jack the Ripper. In TUC, Kirk has that same "I know nothing" moment at Rura Penthe, where he realizes his prejudice against Klingons was dooming the prospect of peace with the Klingons before it even had a chance to begin. Those are the moments when our hero realizes he's been wrong and undergoes growth.
The in-universe explanation is that grief and depression are vicious bastards that lie to you and make you look at a situation irrationally. Kirk was already depressed at the beginning of TWOK, and the death of his best friend on top of that made him near inconsolable.
I don't remember the exact quote from the Wrath of Khan commentary, but he is somewhat befuddled by the Utopian ideal of an improved humanity that Roddenberry and other fans would go on about.
I remember Meyer saying something along the lines of how classic works like Shakespeare still speak to us because human nature doesn't really change over the centuries. If it did, plays written 400 years ago wouldn't resonate with us the way they do.
Of course I think Meyer got more right than wrong. I think Roddenberry and many fans had a blindness to what was actually on the screen in TOS. (What kind of organization is Starfleet? I dare not say the words.)
Yeah, I agree. I think after 10-15 years of Roddenberry going to the conventions and constantly hearing how he was a visionary who created this optimistic, utopian future, he started to believe his own press a little too much and began misremembering what TOS was actually like. (Or more likely, he started mentally overwriting it with what he
wished TOS could've been like with the benefit of hindsight, which is why he implies in his TMP novelization that TOS was just a sometimes-inaccurate dramatization of what
really happened in the ST Universe.)
For someone who said he didn't know anything about Star Trek other than maybe that there was a character named Spock he certainly came up with a lot of ideas on his own that mysteriously reflected many of the popular perceptions of the show. Or maybe he was just echoing what the other script writers had brought to their drafts and channeled that. Who knows?
And Meyer seemed to lock onto this from the first. In his first meeting with William Shatner, Meyer said he wanted TWOK to be Horatio Hornblower in space and Shatner replied, "That's interesting, that was also Gene Roddenberry's original take on it."