Exactly, and that process fails, it's due to something akin to a mental illness, as demonstrated in the TNG Star Trek series when Spock's father suffers such an illness. Spock should NOT be able to cry like this, period, because as upset as he is, mentally he is nowhere near such instability. It is not biologically possible to cry otherwise. :/
I cried until my brain starting screaming for that certain something, everyone in the movie including the Tribble hadn't had the revelation yet, and then they got the idea! I was trying not to scream for victory.
While that's a good point, there's something to be said for the resonance of it. I mean, sure, they don't know each other well, but you don't have to be a rocket scientist to see the love in Spock Prime's interactions with Kirk. I can buy that Spock would have seen that for himself and let down his walls sooner knowing this man was "destined" to be his best friend. I can also buy the idea of some kind of timeline resonance pushing that dialog to be the same: there was a lot of dialog shenanigans in the TNG episode with the time loop.
I was able to buy it all, if a bit incredulously, until that scream. I understand why most fans didn't buy it, although I deliberately set my suspension of disbelief very low with Star Trek and I was responding more to the meta of the moment than what was actually happening on screen.
But that scream was too much for my suspension of disbelief. Having a man who suppresses all of his emotions sound like a man who rides his emotions like the surf is completely inappropriate. A crack of the voice, a low growl of the name, a wordless cry, would all have been more believable than what we got. If the original line got a YTMND from a character who wasn't acting out of character, what makes anyone think it'll sound ok from a character who represses his emotions?
You're right. It was a good movie. It could have been great, if not for that scene and a few other, substantially less glaring, problems.