conclusion:
In answer to the idea that we need to carefully regulate macronutrient ratios to control the function of our thyroid and adrenal glands I have only one comment for now:
Lacks biological and evolutionary plausibility.
To summarize, Matt is a clever and entertaining writer, but his main target is a straw man, as most of the science oriented paleonutrition blogs are not really "low carb" blogs at all. His observation that starch per se need not be unhealthy is not really that controversial.
Matt's claims about his own serum BG after meals should be published as a case report in a medical journal. They are at odds with clinical studies I have read on glucose metabolism in normal highly insulin sensitive young people (can you say "superhuman"?).
Matt's got some good observations, but is over or mis-interpreting the literature in the realm of endocrinology. I did not notice if he has any medical or scientific credentials, but his views of hormonal action lack nuance, to say the least. He is also avidly mining the "I feel like shite, it must be my thyroid or adrenal glands" meme.