The more I think about Kirk's role in the episode the more I realize that Kirk didn't need to be Kirk. Yes, we're supposed to see that Pike wasn't the right guy for the job and Kirk was, but did we really need Kirk to actually be there to show us that? Swapping Kirk for another equally young, brash and creative captain would have worked just as well, albeit without the fan service. It slightly reminds me of the choice to make Cumberbatch be Khan in Into Darkness. It wasn't necessary. He could (and should IMO) have remained as John Harrison and the story would have been the better for it. (In my head cannon he *is* John Harrison while also being one of Khan's 72 followers. He was reanimated instead of Khan but being a huge Khan fanboy he decided to assume his identity to seem more badass.)
Eh, it's a nice homage that Pike and Kirk have differences which always needed to be done.
Its just the description fails.
"He hates rules."
"I disregard the Prime Directive at will."
"He hates to lose."
"Who doesn't?"