What is this “remission” for type-2 diabetes? Does it mean that someone with the condition can, after adhering to the diet for some time, then go back to eating

What is this “remission” for type-2 diabetes? Does it mean that someone with the condition can, after adhering to the diet for some time, then go back to eating how they used to? I don’t think so, so “remission” is bogus. The symptoms can be controlled with diet, but you have to stay on the diet.