My point is Bitcoin isn't designed to be a communication network, so the tradeoffs it makes aren't educational for those just interested in communication networ

My point is Bitcoin isn't designed to be a communication network, so the tradeoffs it makes aren't educational for those just interested in communication networks. A more educational example might be the design of Bitmessage: https://en.wikipedia.org/wiki/Bitmessage https://en.wikipedia.org/wiki/Bitmessage