Backdrop and Drupal from a product manager’s perspective

I was really interested to read about Backdrop.  I’d felt for a long time it was pretty obvious someone significant would create a fork of Drupal.  As a number of people have pointed out, forking is part of what makes open source so compelling.  And from a community perspective, things evolve - they always have done; I wonder if when Nate announced plans on backdropcms.org he felt anything like Martin Luther at the church door in Wittenberg.