LCHF is great but sometimes - as already pointed out - medication may well be required as well, and there's no shame in this. It definitely does also depend on the individual and how able their body is to cope with their diabetes.
I manage pretty well on a low carb/ketogenic diet, but any upsets (stress, illness, pain) will up my glucose levels regardless of what I'm eating, so I reckon I'll possibly always need a helping hand from my dose of metformin. However I have been able to stop some of my other, long term non diabetic, medication over the last 12 months.
Robbity