“Man, as a social animal who has the gift of language, is born to prattle and to pour out twaddle that does much damage when serious work is being attempted. Some people produce copious amounts of twaddle and others very little.”
— Charlie Munger, The Psychology of Human Misjudgment
You think you can ask google and get an honest reply?
You can see how as the article develops, they go from being "uncertain what made GitHub succeed" to definitively being sure about why it succeeded. It doesn't surprise me that details were glossed over as the story rose to the ultimate crescendo of "GitHub dominates".
This is how a good tale is spun and the people lap it up. What's a good tale without a bit of embellishment? (said every bard since antiquity)