I completely disagree on the dehydration.
I think it's an overstated concern.
I call it the "copy and paste" mentality.

For example:
Again and again, it is stated how important it is to give snakes water through brumation.
I, for one, do not give my snakes water through brumation.

I think it's a complete fallacy. Most snakes(at least the ones we raise in captivity) will comfortably handle periods of famine and drought - that's the way they are designed physiologically.