Continuous glucose monitoring is kind of a miracle, but one of the shortcomings of the one I use (FreeStyle Libre) that I find irksome: a precipitous decline in blood sugar will cause the sensor to go offline. It’s always, always a sharp decline, but never for a spike.
Glucose shooting up because you’ve been irresponsible? Nope, we saw that. It’s in your permanent record.
Glucose coming down fast because you’re doing something good for yourself? We’re gonna take a break. You don’t need that accomplishment in your graph, do you?