From the website you linked:
"For people with advanced type 2 diabetes, the only treatment option today is insulin dose escalation."
Seems a bit short-sighted, with all the current drugs available, and the results people see from dietary changes.
Also, 'advanced type 2' isn't a thing.
And this:
"we have conducted rigorous clinical testing of Revita in close to 300 patients with a variety of metabolic disorders and varying degrees of insulin resistance, including type 2 diabetes, nonalcoholic steatohepatitis (NASH), and polycystic ovarian syndrome (PCOS)."
So they've tried their new approach on less than 300 people who didn't even have the same condition and call it 'rigourous clinical testing'?
I don't think that's how it works in the real world.
They are currently looking for a small number of research participants in the US only. So very early days, and to be honest, I wouldn't put my money on it.
But you never know!