Not sure what to say,
@Sean_Raymond, but only that maybe we should consider the fact that that we are all human ... and that as humans we all sometimes make mistakes (even when reporting the results of studies). People interested in science easily read hundreds if not thousands of studies each year -- and one would really need a photographic memory to recall every single detail without fail.
Does this invalidate what has been said? Not in my opinion -- because the effects of insulinoma on hunger and weight have been reported elsewhere. It's easy to find research online when looking for this, so this relationship seems to be pretty well established. Moreover, many T2s and even some T1s on here report that injecting high levels of insulin makes it harder to control weight. Also, the rapid weight loss associated the onset of T1 when insufficient insulin is produced seems to support the fact that there is a relationship more generally between insulin levels and weight gain/loss (even though there are other factors which may impact weight as well).
So, do I personally buy into the research on low carb or keto for T2s? For me, the answer is a clear yes. While it might not be perfect, as a whole I find it very convincing. In terms of scientific rigor, it definitely beats most other research on WOEs for T2s out there. I should also mention the fact that it works for me: Five years of normal non-diabetic blood sugars after a very, very high HbA1c at diagnosis, four of these without medication.
While I agree with you that we all should critically examine the information we find on the internet, I am personally grateful that presentations and other videos by Ivor Cummins, Paul Mason and others like Tim Noakes, Stephen Phinney, Jeff Volek, Sarah Hallberg, Jason Fung, Gary Fettke, and Jenny Ruhl are available. For me, they have been a game changer.
As to to Ivor Cummins' response, I do empathize with him. I am in teaching -- and while I believe it is absolutely fine to correct something a colleague has said, I would also never personally disparage him or her in front of a student.