@ghostlander it's not based on the assumption of a single peer, remember that in p2p networks as the network grows larger there is always a convergence point, it will segment the network for 4 hours before allowing them to continue, the segmentation is limited by how many nodes the attacker controls and is a good defense for a large network.
How are you going to stop an attack done by a pool relaying blocks through a dozen of peers located in different subnets? There are many other possible scenarios. Have you got any simulations done on what you call a network segmentation? Your white paper is not backed by any practical research, I see only some theories which are not impressive. Exchanges can protect themselves without them.