Yeah, no worries.
Until The Cloud (TM) disappears for any number of reasons.
And all your work with it.
Look, I know that The Cloud (TM) can very well be a solution, but any company that uses Oracle's products has enough money to manage its own cloud.
And that still looks better to me than subscribing to a ginormous Single Point of Failure that can fall over at any time - mainly when it is least convenient - and for any amount of time, and you have no control over the recovery process.
I just can't fathom why large companies agree to take that kind of risk.