hmm. I am not sure I agree with that paragraph, at all. I think the author doesn't really represent diversity well and the mystical belief that people can be different and work together.
Sometimes diversity means that people have really different opinions that can't be reconciled.
Everyone in NCIS are serving the government's interests and believe in law, order, and the system. As someone who watches a whole lot of crime, such tv is often framed through a conservative law and order (and authoritarian) lens.
That isn't really true diversity, I don't think.