Not knowing the water came via that process...
Does it matter? So long as there are no live organisms/spores/virus particles, would not faze me a bit. Biologically derived bits and non-self assembling pieces don't worry me, its all organic and what can be used will be snagged by the intestines for use elsewhere. What ain't will be eliminated in a reasonable amount of time.
This just goes to further demonstrate that the sitting President is all show and no substance. If he were of the latter sort, he'd be taking those lessons from someone like Les Stroud.