I know a few people that feed raw diets. Dried kibble is meant to replicate the natural diet and supplement with anything missing they might need to stay healthy. I also have the opinion that sometimes they also supplement with things that are not good for our animals natural digestion. I am picky about kibble brands.
Here are some thoughts: I personally believe that the closer we get to the natural product, the better is it for our dogs (and our) bodies. Dogs are designed to eat meat. In the wild, they eat it raw -- and REALLY fresh. Because worms and bacteria grow over time exponentially, I would think that it would be good if a dog could eat fresh from a fresh kill. However, as the meat rests over time, then perhaps some human help is needed.
My dog does not eat raw. She doesn't like it. She does, however, have her own crock pot. She loves lamb and rice and chicken and rice. Yes, I buy frozen meats for the family and she gets her own... (I don't add seasonings to hers -- but I do add veggies.) She also loves chicken hearts and livers. She is very healthy with this diet -- and I feel it is safe for her as it cuts down on bacteria growth and meat decay that causes disease.
Of course, my cat eats raw often -- but she is a natural huntress and kills her own birds, snakes, rabbits, vermon, ect on a daily basis. No clean up for me and no fuss. I supplement with kibble.