The point is: whatever your opinions are of Google's or Facebook's source code management process, and whatever you think the defects are of that process, and n

The point is: whatever your opinions are of Google's or Facebook's source code management process, and whatever you think the defects are of that process, and no matter what improvements you think could be made, these defects and shortcomings have demonstrably not stood in the way of these companies completing the largest software projects in history.