It's because more people prefer the oil rags to something that actually works, I guess. Medical practitioners are naive, and really don't want to spend any amount of time actually researching the products that may be best suited for their client's situations. So they will recommend what ever is the very cheapest, and call it effective. Products from ABUniverse are purchased by many times more folks with actual incontinence issues than most on this site would believe. They just know about the quality of the product, as compared to other brands. This is why ABUniverese sells out on such a consistent basis, and never has sales. What they have, works; and works better than any other brand on the market that I'm aware of.
Yes, the art and design on their Space product is ugly, all the way down to the shade of blue. And their Little Pawz don't offer much more in asthetics, and finally the Simples look so generic, reminding me of the unlabeled grocery products many years ago. But again, all of those work. Their single-tape SDK diapers (the best on the market in my opinion, bar none!) are nearly impossible to obtain because of their high quality and huge demand. I have to conserve on mine, because I can never be sure when they will be restocked. I would certainly like to see something that is competitive with the SDK, with better availability. But I don't think that will happen any time soon, because the public ignorance and stupidity.