Git is a DVCS, created to help manage Linux, which uses a distributed cabal of individuals, each of varying "authority" who choose whether something gets in or not.

The problem is that despite using the same DVCS for source code management, other projects insist on a hub-and-spokes development model, which does not scale.

Projects would be a lot more productive (and a lot more resilient) if they also followed a model where "The <x> maintainer hasn't accepted my pull request" just wasn't a big deal.