Sure I have - every time I look at an annual climate map of their home area. You mostly see average highs in the low-upper 80s and average lows in the mid-upper 70s depending on the time of year.
In a perfect world, would it be cool to have a thermostat and heat source that could replicate these daily temperature fluctuations? Of course. Would that be better for their long-term health than providing them with a consistent temperature gradient that captured this range on a daily basis? I'm not sure.
In recent time, I've become quite a bit less concerned with skipped meals from the standpoint of "because they ate, I am doing things right". These days a skipped meal upsets me more from the standpoint of "I should have known better" because I'm trying to become more observant of individual snake's feeding habits. Also, because I feed mostly frozen/thawed rats, a missed meal = money wasted. I've actually changed my feeding schedule (split into two days vs one), and in-tune feeding amount (there are no longer "leftovers" to feed to snakes who already ate on that day), to reflect this mindset.