Good article. It fleshes out with scientific fact things I knew well on a physical level. It's the body's over-reaction to a existential threat. Only the timing sucks.
I do want to make one point about another type of low that can really fool you. I seldom experience this type of low but the ferocity and tenacity of it surprised me. It's the "low from hell" and its persistence can fool even the most disciplined and experienced hypoglycemic.
It took me a few times with this low to realize that it's fundamentally different to the garden variety mismatch of insulin, food, and exercise. I call it a basal low since it's caused by a mismatch of basal insulin to basic metabolic needs. It builds up a head of steam and even the generous 15 grams of carbs does not make a dent. I've fought off these lows for 30-90 minutes.
Even when my discipline to resist bingeing functions well and I overcome the urge to overeat, this low requires multiple treatments, as many as five or six. The biggest thing I've learned is not to let your CGM guide you during this. The CGM is about 15 minutes in the past and you will over-treat if you're not finger-sticking.
Basal lows can be frightening once you observe that it does not easily give up like most lows once you treat. Basal blood sugar is the product of liver glucose output and basal insulin, in a pump, basal delivered about two hours ago. If your basal insulin rate is too high and the lag time to act is two hours then it makes sense that this kind of low can persist. Especially when you're sleeping and there's no food activity.
I remember Wil Dubois at DiabetesMine writing about an epic low that persisted far longer than he'd ever seen. Sorry, I can't find the link, but his description mirrored my experience. I puzzled over what made this type of low different and it occurred to me that it could be the basal insulin. Since it's delivered slowly and rates don't change quickly, it makes sense that any low produced by it would tend to be sticky.
My solution? When sleeping lows do not respond well to the first treatment, I get up and start fingersticking and only treat based on the fingerstick. I'll use glucose tabs chased with water. Drinking 8-12 ounces of water insures I'll be up again in a few hours and I'll check BG again.
Basal lows do not happen often to me. I can count them on two hands over my 32 years with D. But they can frighten you if you're not aware of their character and source.
For those who do long and hard cardio exercise, a basal low is similar to the exercise-caused-delayed-low that can hit in the middle of the night following long duration cardio the day before. My basal lows were not caused by exercise.