Lawyers often get the reputation of thinking about the "worst case" scenarios, no matter how unlikely they may be. It is a tricky game of "what if," where a potential situation is weighed against the likelihood that it will occur. Insurance companies similarly weigh these pros and cons and decide whether they will insure against a particular situation.
When you have multiple devices that are connected through a cloud-based server, they allow you to access everything on that server, through any of your devices. This is generally the reason most people choose to have access to a cloud-based server to begin with - you will always have the document you need.