Excellent points and some thoughts:
Liver (working) is supposed to do a dump when BG goes sub 70. The amount of glucose dumped on system is dependent upon the insulin level in blood. Liver works off of inverse of Insulin level. Liver assumes - lower the insulin level means to liver add tons of glucose ; hgher insulin means reduce amount of glucose dumped.
The human body is an interesting sample of cost effective engineering.
As the pancreas ages and goes wonky dropping insulin level, the liver oblidges by adding more glucose. This is not an ideal form of signalling from a failsafe model.
When one is young and system working correctly, skipping meals is quite OK as liver adds correct amounts of glucose when blood glucose goes too low - sub 70.
When one gets older and things become loose and wonkey, low carb diets while desireable may cause the liver to dump sooner and more often. If liver is caught overadding glucose, one may have to add a few more carbs to diet to reduce amount of liver dumps that occur. That is why vancouver sailor quite correctly mentioned the eating meals on regular schedule and no skipping meals.
The liver actually has a couple of streams of glucose namely the low level feed that is on all the time providing the necessary amounts ( slightly more) that keeps body alive, brain functioning etc. Basil pulses from pancreas chip away at the liver low level glucose output to regulate BG to 100 - typical.
The liver also has a high level dump mode for when glucose level of blood system goes sub-70. The only time I ever saw the blood system glucose level jump fast was when the liver was doing the liver dump mode from its resivoirs.
The other flow is when the intestines are cranking out glucose from digested food being passed to liver and is used to fill back up the liver resivoir and also sent to external blood system. This mode was always slow , smooth and cgms followed easily.
The problem one has is that when analyzing the troubles and problems of the body, assumptions are made that the complex system is mostly working and all issues and problems rotate around insulin and the pancreas and the complex powerfull actions of the liver and its glucose buffering actions and role quickly get overlooked.