...people need to be aware that depending on these alone may not always be the wisest choice and when it comes to water, having available amounts and redundant plans in place is vitally important.
Wise advice. Then again, quite a few hikers (typically the ultralight crowd) do not carry water, and practice "cameling up" by drinking at water sources along the way.
Not sure how they plan ahead for injuries that might require wound irrigation. I guess they're just accepting the risk.