Sorry to be rude, but who gives a shit? they're his dogs to feed and call what he likes.

Look on the positive side - at least his dogs are getting some raw in their diet, they're getting nutrients that they wouldn't be getting if fed kibble alone. To be perfectly honest, he sounds like someone trying to do the best for his dogs, he just lacks the confidence and knowledge to make the switch 100% to raw. Hence why he's trying to cover all bases and feeding a mix of raw and kibble.