I think Bond is entertainment with very clear-cut baddies and values.
Bourne is more interesting (and I felt this when I read the books years ago). He's an ambivalent character, struggling to make sense of his position, loaded with deadly potential but reluctant to use it. He's a more engaging hero, but one that raises many questions. I certainly found myself thinking more after a Bourne movie than a Bond one.
He is right, it's just that as British people we don't like foreigners saying bad things about Bond. It's like saying anything about the Royal Family, funny if it's a British person but disrespectful for any other nationality.