According to that site.. transportation to and from WWoS happens at MGM Studios. So you'd have to take a bus to MGM studios first, then take a bus from there to WWoS.
BUT -- be careful -- that website isn't 100% right. To get from Coronado Springs to Downtown Disney.. it says to take a direct bus from CSR to BWI. I'm dead sure no such bus exists. And then it says to take the BWI bus to DTD.
I'll get a transportation person to have a look at this.
Knox