Hi Copperbod,
I can't disagree with anything you post here
Just want to add that the knowledge that Baha'u'llah has shared with humanity is not related to instructions to build material things, but rather instructions on creating frameworks for social cohesion and individual empowerment. The structures being created within the Baha'i community are intended to have a free flow of knowledge from all parts of the world to anywhere where advances in social cohesion and community progress and human empowerment might be required. You are correct in that this is not in the form of an instruction manual alone, narratives are created containing knowledge related to any of these spheres of interest, but it is through human conversation, or oral transmission, as you put it, that this knowledge is applied in the grassroots setting.
So in this regard, we do not have Baha'i communities in developing countries suffering from disempowered youth, poor education and social disintegration, while developed countries enjoy empowerment, good education and social cohesion. The whole Baha'i world progresses together along a continuum of described milestones towards higher heights of material, social and spiritual progress.
Kam