Actually, there is a time to use naked distilled water, although I have never done it: it is often used for water fasting/cleansing. This illustrates why it should never be drank regularly, unconditioned - it is so "empty" that it facilitates the leaching & removal of stuff from the tissues and blood (the "stuff" flows from a higher concentration fluid (the blood and tissues) to a lower concentration fluid (the empty water).
If you believe in charged water with positive messages, I would think it is better to fast with this sort of water rather than distilled water.