BU is not bitcoin it's an open source software implementation of the bitcoin client. - Unlike linus torvald's Linux or mike hear's XT  it does not have a benevolent dictator, and unlike Core's crony consensus, BU has a mechanism by which controversial changes are presented evaluated and voted on.

Core may have a geographically decentralized developer base, but make no mistake it's only a few influential developers who get to decide what projects take priority, and no rational process to resolve conflicts, case in point BIP101 - which ironically lead to the discussion on how to better resolve conflicts that resulted in BU's Articles of Federation.

Ultimately users decide what bitcoin software they run. BU members want more diversity less centralized control, BU has one governing system for controversial changes to one implementation, Core has none. I hope to see more.