And this is the crux of the problem. "Oh, that'll never happen to me" until it does. I've been asked several times, "why do you go to the trouble of [hosting your own e-mail | not having the same mobile # on SMS as on Hangouts | using ownCloud instead of Google Drive | and other greatest hits]". Stories like this are why. They're not at all uncommon, they're a disaster for the people affected, and they're clearly not a wake up call for Google to get any better about their free-to-the-end-user services, so I've no motivation to change my practices.