I vaguely agree that it jumps from set piece to set piece and moves at such a pace a lot of the political and social commentary just gets lost in it.
But again, the rest of the Trek movies never let the plot get in the way at action...
The fact that he was an important ruler and the fact that he's 300 years out of his own time are just ignored.
This for example, I don't remember any of this from TWOK. He was just some bad ass dude with a vendetta. The whole review is pretty poor and I think he went into wanting to hate it, I think I saw him on some screenjunkies thing ragging on it before release. There is a portion of the fanbase who want to hate on it because its different - when its actually not that different other than being big budget.
When they first find Khan in TWOK, he gives us a quick glimpse into his background but then we're onto revenge.