Occasionally I'll be at a hotel and I want a snack. I go to the vending machine. I never find a snack I want. I end up returning to my room and going without, which is far more healthy than if they had "healthy" snacks.
Why do you think that's healthier?
If you're hungry or want a snack, it may be that your body is telling you it needs energy or some nutrient. When you go without your body doesn't get what it needs.
Unless the snack craving is a sign of addiction. But haven't you ridiculed the concept of sugar is addictive?
I personally think it's healthier to avoid vending machine snacks, because in my experience very little, if any, of the snacks in vending machines are not extraordinarily high in sugar, and other fast/simple carbs that will spike blood sugar/insulin.
So I agree with that sentiment, and it's totally consistent with the LCHF alternate theory of nutrition.
But you have vehemently disagreed with that theory in the past.
So by what logic is not healthy to opt for so called "healthy" snacks from a vending machine?