The study in question is Dietary Carbohydrate restriction as the first approach in diabetes management. Critical review and evidence base. Here are my comments on the 12 points.
Point 1 is wrong. For ~85% of people who have it, hyper*emia is the salient feature of T2DM, where * = glucose, TG's, cholesterol, NEFAs, uric acid etc. For ~85% of people who have it, T2DM is a disease of chronic excess.
Ad lib LCHF diet → ↓ Blood glucose & ↓ fasting TG's, but ↑ PP TG's, ↑ LDL-C, ↑ LDL-P & ↑ NEFAs. ↑ PP TG's is associated with ↑ RR of CHD. ↑ LDL-P is associated with ↑ RR of CHD. ↑ NEFAs are associated with ↑ RR of Sudden Cardiac Death.
Point 2: So?
Point 3 is wrong. A caloric deficit is essential, to reverse liver & pancreas ectopic fat accumulation. See Reversing type 2 diabetes, the lecture explaining T2D progression, and how to treat it.
Point 4 is misleading. Feinman doesn't distinguish between different types of carbohydrates. Starches, especially resistant starches (e.g. Amylose) are beneficial. See Point 11.
Point 5 is moot. Prof. Roy Taylor found that motivation determines adherence. Prof. Roy Taylor's PSMF was adhered to. See Point 3.
Point 6 is correct. Prof. Roy Taylor's PSMF is ~1g Protein/kg Bodyweight, some ω-6 & ω-3 EFAs & veggies for fibre. See Point 3.
Point 7 is misleading. Siri-Tarino et al gave a null result by including low fat studies, also a dairy fat study which had a RR < 1 for increasing intake. Chowdhury et al gave a null result, as some fats have a RR > 1 for increasing intake and some have a RR < 1 for increasing intake.
Point 8 is irrelevant. ↑ Dietary fat → ↑ 2-4 hour PP TG's. See Point 1.
Point 9 is partly correct. Microvascular, yes. Macrovascular, no. See Point 8.
Point 10 is mostly irrelevant. See Point 8.
Point 11 ignores results obtained with high-starch diets, where the starch contains a high proportion of Amylose. See Walter Kempner, MD – Founder of the Rice Diet and From Table to Able: Combating Disabling Diseases with Food.
Point 12 is misleading. The low-carbohydrate part is fine. It's the high-fat part that can cause problems. See Point 8.