You’d have to read the books for an full understanding of the idea, but in very simplistic terms, it is that dietary fat and the fat in your muscles and the abdominal fat are what interferes with insulin's ability to manage glucose and causes insulin resistance. That is why weight loss in general is beneficial for type 2. It is a diet (with very slight differences) recommended by a number of docs that are well known, at least in the US - Ornish, McDougal, Barnard, Esselstyn, Gregor, Fuhrman as well as the folks at Forks Over Knives, Mastering Diabetes and Dr. Campbell (Phd) who wrote The China Study. I realize that, just because they say so doesn’t make it true, but they cite a lot of studies and have a lot of clinical success.
Again, I’m not trying to talk anyone into this, I’m just saying that it is possible to use this. If you are eating a lot of carbs and your labs are normal (non-diabetic) and you don’t have to test your blood sugar anymore, and all the other metabolic markers are either normal or approaching that without medication, wouldn’t you consider that to be a reversal? Perhaps I used the wrong word.
You're talking about putting diabetes into remission, that's the word you're looking for, and as you acknowledged in your first post then that was done on a low carb diet, not WFPB.
All I'll say is that while you're not actively selling the WFPB diet, you are promoting the diabetic "dream" - a world where eating high carb for at least 16 months is possible, without medication, with it also being lower in fat and thereby removing cholestoral risks, with no adverse impact on blood glucose, and that you've cured insulin resistance in the process - albeit while also quietly acknowledging that 20 years of low carb (LCHF) is what got you into remission in the first place.
Can you stay in long term remission on 200g of carbs a day and low fat? Who knows, I've not seen anyone talking of that, or WFPB, in probably 100 hours of research on diabetes management/remission over the past 5 weeks, but I could have missed it. I saw plenty of low carb vegan/veggie diet approaches, but not WFPB specifically as a diabetes management approach. A quick Google search for the specific phrase of "WFPB diabetes" just now did return some results, however these are mostly links to articles by the doctors you mentioned on non-mainstream medical news websites, or about how a wholefood vegetarian/vegan plant based diet can help with the prevention of T2D onset, which seems logical and nothing particularly revolutionary given its already well known these groups have a lower probability of metabolic syndrome and diabetes (for example, I knew this before I was diagnosed with diabetes and researched the topic). One point I did learn on this brief Google search and that is noteworthy is that most of these articles talk of WFPB being
high in unsaturated fats, which is very different from your original summary of your diet being "
low fat". WFPB actually seems to be higher carb, higher fat, and lower protein in its truest form, based on what I've read.
You've had 16 months of success with your form of WFPB and I can't claim to have read the entire internet. Maybe all those doctors you quote are right, or maybe they're just quacks selling snake oil, you never can tell these days. For balance, my opinion is the same of all the LCHF doctors selling the dream that there isn't any bad cholesterol, or that we don't need fibre at all in our diets. Maybe they're right, or maybe not and they're just selling a dream. I err on the side of caution, treating my health like I would money these days since my T2D diagnosis - i.e. if it sounds too good to be true, it probably is, and that goes double when a miracle is pushed by doctors selling books and doing YouTube videos for ad-click revenue. I'm not qualified to be able to disprove what any of these doctors say, but whatever the diet approach, some of it sounds too good to be true in my humble opinion.
We'll have to agree to disagree on approach, like people did in the good ol' days before forums and social media, plus that way we don't hijack someone else's thread in the process. You have your approach and I genuinely wish you continued success with it for years to come. If it isn't, just don't forget your proven and tested 20 year success with LCHF.