We're at this point,bitcoin is being labelled as a known Ponzi. Implementing the blokchain in a hierarchical format will surely make the suspicion come true .The model you proposed doesn't look distributed but more centralized.A node will have basically two more child nodes with more leaf nods.The parent node shall have a Root Node.Seems like a Pyramid scheme to me.
I've read better critiques on the back of cornflake boxes. Nga you cray
However, you are probably right about the name though... the name of the project shall now be: Distributed Blockchain Hierarchy Project