Why are you surprised by this? AWS was grown out of Amazon's internal systems. They productized what they used everyday because they thought it would probably

Why are you surprised by this? AWS was grown out of Amazon's internal systems. They productized what they used everyday because they thought it would probably be useful to others. Google doesn't offer anything like a virtual server internally. Everything is built on their various abstraction layers. They are productizing what they used everyday because they thought it would probably be useful to others.