Hikermor, did we read the same description?

• Designed with a floor that stakes down to keep you off the ground.
• Set up as a 'lean-to' wedge, as a pup style tent, as a tarp, or simply as a canopy.
• Side wedge prevents the wind from getting in at the head of the unit .
• Roof ties to the nearby vegetation to keep off the rain, wind, and snow.
• Waterproof polyester fabric
Bold emphasis is mine. I'm not sure if this is the same as the coating you mentioned but it might be worth exploring a bit more. Is polyester already a waterproof fabric? Does it need an additional waterproof coating as well? Am I missing something else?