Yeah, the block-size war really proved who is in charge of what "upgrades" get implemented on Bitcoin; namely the folks who run full-nodes and actually use them for transacting.

It is a story of how the plebs who run the nodes successfully defended the network from having a block-size increase forced on them by the big miners and exchanges. An increase that would have had a centralizing effect, since it would have meant running a node would require beefier and more expensive hardware that maybe the average pleb could no longer afford.