I'll save everyone some reading. The advice was:

Don't do it.

While I agree that in their particular circumstances that it's probably the correct answer, I don't think it's right for everyone. For one thing, their system isn't tolerant enough of downtime. If one of their databases goes offline, they've got some manual fixing to do to get it back up and going. Ugh. (I took this to mean that if you unplug the network cable, they have manual fixing to do. They might have meant power loss... And that's a little more understandable, but still not something you really want in the cloud.)