Earlier quoted context omitted.
Wave died because no one (not even developers) understood what it is or what applications could it have outside of mail.
This sentence is baffling to me. Do you not know what Wave does? Really? Or do you NEED a marketing person to tell you how to use a product?
I was, however, happy to see that some of the cool parts, like simultaneous realtime editing, made their way into Google Docs.