I don't get how people find it jarring. It's a quick little snap and move on; whole trailer's like that--trailers in general are like that. Just click, click, click, click, from one shot to the next. Certainly no more jarring than moving from one action shot to a character shot of any other character. It's just cause she's in her skivvies that it stands out.
I thought this scene shows "Hey look -- Kirk and Carol Marcus are getting together!" Isn't that fundamentally Trek lore? What's the big deal?