Not surprised, don't see the point in them personally, but have no less point in my mind than many other clothing accessories. By this I mean that just as I'm not into body piercings (for example) and other people are, someone else may very well see a point in wearing some of the things from the site when I personally wouldn't. As has been already stated: "to each their own".
Disgust at something like this is a pretty immature reaction; the vulva is a thing that exists, that's what it looks like, get used to it people...
(o yeh... male, 19, currently studying psych/sexology at uni.)