OK I will say it again. Stalemate. The Government is not interested in making a U-turn, and has immense inertia against change. The LC approach is perceived as the new kid on the block, so carries the Burden of Proof. Modern research techniques and ways of interpreting the data is a new technology, so until it becomes accepted by mainstream nutritionists, AND someone puts up the money for a research project, then we have a snowballs chance in hell in changing the status quo. There is no public outcry since the public is generally uninterested and unaffected by these findings, so will not lobby their MP et al to raise awareness. So LC diets will remain amongst the mushrooms -kept in the dark and fed bullsh*t/
Precisely this. The official definition of T2 is that it is a progressive disease that may start by being treated with diet but will lead through various drugs to insulin. As a result, the recommended diet, which complies with this point of view, is not out of step at all. As the history of T2 is longer than the diet, the received wisdom is that T2 has always been progressive and the variation of diet recommendations to handle CVD has not affected this.
It's only in a very short timeframe in all of this that anyone has raised the idea that a) T2 can be reversed and b) T2 can be reversed by diet . Indeed, it appears, having a dig through google that it's only really Dr. Roy Taylor's
paper in 2012 that is where you first see the idea that it is insulin resistance causing the issues that cause mitochondrial dysfunction and not the other way around, and that reducing this might offer a reversal, officially peer reviewed and published. Even there he discusses using very low calorie diets to recover insulin resistance.
So while there have been people anecdotally discussing the benefits of low carb for T2 for longer (this forum for example), "official" recognition of the need to reduce insulin release to manage the condition has much a much less long life. This is why the current evangelists are important, and things like the data gathered from the Low Carb programme are being turned into studies for peer review. It only takes the body of evidence to build to that inertial point...