Maybe you remember the dusty old term 'peer-2-peer'?
I got my share of abuse for proposing that it should be deprecated as a sales pitch before it became a total joke since that is the way things are heading.
Well, then we have to get pedantic. Bitcoin was *never* peer-to-peer. A miner technically always sits in the middle, even if the hashing/nodes were perfectly uniformly distributed.
With such a definition can anything be peer to peer? There would always require some media for communication between the peers.
Some computer among the millions transmits the packet, some router...
If it doesn't require such an extreme definition, then it is more peer to peer than pretty much anything else.