Countless studies have shown that diabetics' blood sugar means and variance, i.e. control, are directly correlated with their carb consumption, generally speaking. How that works in the body is settled science, as far as I know.
So I disagree that moderate carb eating is a smart or healthy choice, even though I do it myself from time to time. (though I consider it "cheating" because my normal diet doesn't permit simple carbs).
Any time you eat carbs you need more insulin to cover it, causing sugar spikes and troughs, increasing chance of hypoglycemia, weight gain, and having to re-feed. The law of small numbers aka Bernstein is based on sound reasoning and empirical evidence and the scientific method. I don't believe for one second most type 1s are well-controlled (actually many studies show this is indeed not the case), because my definition of well-controlled is stricter than most. My own moods and irritability are directly related to how well I eat, and I honestly doubt it's any different in other people. Hyperglycemia has effects on the mind and body which are pretty much universal AFAIK.
Carb consumption shapes my sugar graphs in a direct way. Put it this way, I take GLP-1 right? To slow down digestion and thus reduce sugar spikes. Does this help? Yes, definitely. A lot. I can sit through a meal without getting antsy during conversation afterward. But is it better than simply eating a low-carb meal that doesn't spike my sugars in the first place? No, not at all.
Thankfully this disease will be cured soon and other people's carb intake is not my business. I just find it odd that every diabetes site people are saying it's OK to just count your carbs and cover them with an appropriate amount of insulin. This is bad advice, IMO, and one which I followed for nearly two decades until following LCHF which is life-changing. But people don't listen and resist change, they want to eat their carbs like non-diabetics and are OK with long-term complications resulting thereof. That's on them.
I'm bowing out to these discussions, I only signed up here to talk about FMD in the other thread and it seems my views are not welcome here.