It's important to take into account that a slow development process isn't compatible with what most of the investors are seeking.
They are little delayed in something but it was cleared from the start that this project had roadmap for long termed goals. When investors don't read and usually they don't , then problems come in the middle of way. If people read before investing then all this confusion can reduce to half. Project is getting closer to last phases it is much time to see it working now.