Maybe the idea is that the stuff is so cheap and horrid that all you want to do after applying it is to cover yourself completely?
Apparently the Chador brand has been around for a while, the managing director of the company producing the stuff says that they just liked the sound of Chador and that nobody ever complained.
I will check at my local Plus tomorrow, maybe even spend the 1.99 to have a hilarious piece of bathroom deco.