That may be true, but they have been busy with the ICO lately, so lets give them a breathing space, they will update the whitepaper eventually, just don't force them by being a little impatient, just suggest it or remind them from time to time.
They are a team of 4 and the last update of their ICO contracts was in July:
https://github.com/wwam So I assume the technical stuff is done.
They are busy advertising:
We are still advertising, and currently pushing the project to some private investors. We will probably see some big investment coming soon

Isn't the whitepaper their main advertising material? Then IMHO that should get top priority.