It is tough for me to make an effective post about this topic. I will state that RR has been the topic of some rather revealing and controversial threads in the past. I have posted and seen his replies to some of my comments. It is obvious that he knows a great deal about bees. It is not obvious that he knows a great deal about genetics, though he may.
To illustrate, I grow and sell tomato plants. I have seed for about 500 varieties with diverse traits. I could easily tell you about the biggest tomatoes I grow, the best tasting tomatoes, the rainbow of different colors, etc. But, even though I am far beyond an amateur, I am not so well versed in tomato genetics. Before anyone goes off on a tangent, here are a few links that show a smattering of the traits currently documented.
I can easily discuss the reasons why a tomato homozygous for the B-og^c gene expresses high crimson phenotype. I could talk about the sucr gene which results in sucrose accumulation in tomatoes as compared to starch vs simple sugars such as fructose. But these bits of knowledge do NOT make me an expert on tomato genetics. For similar reasons, I am not an expert on honeybee genetics.
Being a good bee breeder does not necessarily mean one has to be a bee geneticist. A bee breeder watches his bees and observes a trait or set of traits that are favorable then propagates those traits. This has little to do with genetics and everything to do with being diligent and observant. You will find this in Brother Adam's writings. He was not a honeybee geneticist, but he was a most diligent and observant beekeeper and honeybee breeder. It would bear asking if RR is such a diligent and observant beekeeper. The best way to find out would be to ask for pedigrees on his breeding stock. Brother Adam had pedigrees going back to 1920.