He elaborates a little in a previous interview...
http://www.startrek.com/article/exclusive-interview-part-iii-nicholas-meyer-on-todays-trek"...I have nothing but respect for what [JJ] does. But it’s so different from… I don't see Spock as a guy that goes around slugging people and just sort of hitting them again and again and again. None of these people seem to be the same characters that I was asked to deal with. I know what II is about. II is about friendship, old age and death. I know what IV is about. It’s about extinction. It’s about taking care, ecologically, of the only home that we have. I understand what VI is about. It’s about the collapse of the Soviet Union, and it’s about change and fear of change and “Have we reached the end of history?” as Francis Fukuyama wrote when the wall came down. Those are the themes and the ideas of those three movies on which I worked. I don't know what the ideas are in the new Star Trek movies. I understand that they’re rebooting them, but that’s a mechanic chore, that’s a technical chore."
Count on Meyer to be blunt yet try to be balanced and respectful. I agree that too much in the reboot films feels like change-for-the-sake-of-change but that is the risk when most of the originals of what you're redoing were so well-done.
And an Orci reply:
"Theme is parable on war on terror. Most crtitcs pointed this out. Spock punching people is exactly the point. Fear and hate can lead our “logical” side to act vengefully, when we should be more above it. Agree or disagree, there’s the plot theme.
And yet the tone of the scenes seemed to be that the audience should cheer on Spock not only catching Khan but beating him, that Kirk had been wrong for merely stunning Khan and that not killing Khan was at least primarily wrong only because of the chance to save Kirk.