I know nothing about this company, and googled it because it seems like a cool idea. I've got no dog in this fight. The company seems to be out of Bend, Oregon (or maybe that is just the American distributor for a company based elsewhere), so I found this paragraph on their website (below) a bit counter-intuitive to the apparent intended use:
Armadillo Bag is not a portable fuel container as described by ASTM, EPA, ARB or other state and federal agencies. Armadillo Bag is NOT intended for fuel storage, transport or use as a gas bag in the USA. Armadillo Bag liquid power reservoir utility bladder is not a food-grade product, so we do not recommend its use for potable drinking water without filtration.
Are they saying - use the fuel bags at your own risk, and face any legal consequences on your own, because we are not selling these fuel bags as fuel bags?
When it comes to the water bags, there are multiple options for water storage that are made from food-grade plastic (Rotopax, among others), so again, its a rather surprising disclaimer. It is true that you cannot roll-up a Rotopax, but I'd rather carry a Rotopax and drink out of it, then carry a water bag and have to filter the water before drinking. The water bag would be good though, for washing dishes, or taking a quick shower.
www.giantloopmoto.com