I don’t think the title of the tread and article fit the content very well.
A killer app is something good enough to drive hardware sales by itself. What is described is far beyond that, a vision of a future VR-internet and beyond. VR do not have time to wait for that, it needs a realistic killer app in 2017.
Beyound the title I think it fails as a manifesto because it lacks focus. It contains almost everything anyone could wish for, which means it ends up saying little of importance.
That said, I wish you all luck with the VRLD project. Just realize that even at a basic level, it is a huge undertaking.