I saw another video from a wing chun school in london. They seem to be a practical school.
Anyway, here is a clip of them using there methods, which I think look very close to the methods of kata. Especially Naihanchi Shodan. ( I'm a Naihanchi kind of guy, so I tend to see it everywhere! ; ) )
Here it is!
P.S.- Look closely to the point about 8 Min. into it. He does a combo at about 9:30 -9: 50 that looks like the opening part of Naihanchi.
Take care guys and let me know what you think!