It is because Amazon dog-fooded their own technology stack. This forced them to have a better interface to their infrastructure, which in turn made it easy to o

It is because Amazon dog-fooded their own technology stack. This forced them to have a better interface to their infrastructure, which in turn made it easy to open to the public. Google on the other hand, hid behind their own complexity and let engineers feel stupid for not knowing Borg like the back of their hand.