You dont like this of course but the fact is that your speculations are to a large extent suspect simply because most RVAFers mention doing increasingly  badly on pemmican healthwise. Therefore for anyone like William to promote pemmican as a health-food is not only dangerous for other members but also trollish.

Complex carbohydrates that are not easily digested feed harmful bacteria in our intestines causing them to overgrow producing by products and inflaming the intestine wall. The diet works by starving out these bacteria and restoring the balance of bacteria in our gut.
The Specific Carbohydrate Diet™ is biologically correct because it is species appropriate. The allowed foods are mainly those that early man ate before agriculture began. The diet we evolved to eat over millions of years was predominantly one of meat, fish, eggs, vegetables, nuts, low-sugar fruits. Our modern diet including starches, grains, pasta, legumes, and breads has only been consumed for a mere 10,000 years. In the last hundred years the increase in complex sugars and chemical additives in the diet has led to a huge increase in health problems ranging from severe bowel disorders to obesity and brain function disorders. We have not adapted to eat this modern diet as there has not been enough time for natural selection to operate. It therefore makes sense to eat the diet we evolved with.

The  rationale of the diet, as described in Breaking  the Vicious Cycle, is as follows:

1. When the body receives complex carbohydrates (disaccharides or polysaccharides) these substances must be broken down before they can be absorbed.
2. In the body of a person who is not able to break these substances down efficiently, an influx of undigested material causes harmful bacteria to flourish.
3. Bacterial overgrowth is accordingly followed by a significant increase in the waste and other irritants they produce.
4. Irritation in the lining of the digestive tract results in the overproduction of mucus and injury to the digestive tract, which in turn causes malabsorption and makes it even more difficult to maintain proper digestion.

The purpose of the diet is to break the ongoing cycle caused by an overpopulation of harmful bacteria in the gut. When the body is able to absorb the proper nutrients from simple sugars and other carbohydrates that are easy to digest, the inflammation and other complications caused by many auto-immune diseases can be lessened. The goal is to rid the body of complex saccharides so that the gut will be able to heal itself and enable further healing to occur.

The method of the diet is to keep the bacterial flora well balanced and to allow the gut to digest all of the food it is given, thereby starving out the harmful bacteria.

Certain foods, such as commercial syrups and sugars, starchy vegetables, and dairy products are not allowed while on the diet. Other foods, such as fruits, greens, animal protein, and nuts are allowed.

me, i am one.. i can promise you the pemmican i made was 'raw'... both meat and fat were left at 85F (3 days for the lean, 1 hour for the fat)... so the fat was not really rendered, just softened and then blended to a viscous liquid.  i even tried it with the same lean mixed with raw bone marrow (not warmed, just fresh and mushed in).