It's interesting, I don't see that being on cloud would have avoided or helped this situation much. They were able to ramp up their hardware very quickly - who knows where they got it that fast - and it actually made the problem worse, so being on cloud and having the ability to do that with keystrokes would not have helped. You could say they might be using a different set of components if they were on cloud which may not have suffered the same issues, but you can play the what if game all day it's not related to pros/cons of public cloud.