My only problem with distilled is people who use it without properly remineralising, my clinic has seen many people who switched to distilled when it got big in the 80s/90s come in with general multi-mineral deficiencies because they didnt know they should remineralise it (we assume distilled may be the problem, as its a connecting factor between all the cases).
I find it funny that many people dont realise that whilst an acid state is detrimental to health, people can live with it for years. An alkaline state is death, pure and simple. Our body deals with 'aciditiy' much more effectively. I wonder what this implications this has, generally?