I'm not an expert but believe this belief is more Type-1 (hereditary) than Type-2 (environmental) - but as we age everything gets worse ;-)
As I understand it with conventional therapy is to maintain an elevated blood glucose to minimize the chance of coma from hypos. Current RAAs are pretty good at this because they linger so long in the body. However the 'elephant in the room' is elevated BSugar increases insulin resistance and leads to neuropathy. Kind of a pay now or later catch-22.
GLP-1s are, IMHO, a very bad idea in they they stimulate the already compromised pancreas and data continues to arise pointing to pancreatitis.
In a nutshell mimicking the body's normal insulin response is perhaps our best chance at slowing, or even reversing the progression.