The real lesson I make of it is that we shouldn't use a cloud product or SaaS if vendor do not allow customer to request recovery or prevent the customer to manage its own backups. I know git is decentralized and no code is ever lost but github is so much more than git.

Backups aren't mean to recover from outages. They are also, and I would even dare saying mostly, used to recover from human mistakes. If the vendor terms and conditions don't allow this, github is not a production ready solution.