I don't see this as a Diversity Issue, Old Soul. I see it as a "I'm looking for something to complain about" issue, that tries to use race and "diversity" as a calling card. To imply that the RG rarely publishes photos/stories about the minority community just doesn't hold water. 
I view the article as a random sampling of some local events that occurred over the past year. Could it have featured someone who was "non-white"? Sure. But does every feature story that appears in the RG have to pass some kind of litmus test in regards to race, ethnicity, gender, sexual orientation, etc. before it is published? Personally, I feel these kind of letters, no matter how well intentioned, tend to undermine how serious a problem race and inequality is in this country. I think they desensitize people to stories that really do involve racism and other discrimination, and that's not a good thing.