Its a marketing thing, the blades you are referring to are made in India & China for the Asian market where Gillette has the rights to the Wilkinson sword trademark. In the Americas Wilkinson sword are sold under the Schick name.
I have been shaving with Wilkinson Sword DE blades for the last 4 years. Its hard to find a better blade IMO. I do use other blades as well that are close to W.S. though, such as Dorco Prime & Gillette Green & Yellow blades.
I've tried both the (old production) Indian-made and (new production for the Indian market) Chinese-made GWS blades. They're not the worst blades out there, but definitely not amongst my favourites and I won't be picking up any more. German-made Wilkies work better for me, although I know not everyone shares this view.