Really..? I thought that KHAAANNN!!! was great, especially as the scream blended into the weapons fire of the Vengeance... I thought it was pretty eerie actually...
Had Khan not been Khan but JUST John Harrison, how would you feel about Spock yelling "HARRRISSSOOOOOOOON!"?
I would feel like it's a silly question because then they probably wouldn't have done an homage to the scream in TWoK
since it wouldn't have been Khan.
But, as a staple of film, TV, comics, and so forth, it's hardly anything new or unusual: