The editorial forgets about that there are more programs than PRISM (what about xkeyscore, bullrun etc...) do get copies of your data. The big providers have been shown to provide direct access to their stored data, how does encryption helps in that case, unless the data is stored encrypted all the time like kim.coms new service. But that is not practical for regular databases, only perhaps for files.
How do you protect yourself from future regulations, most probably there will be government decrees that they need access to the data (for security reasons of course), and at that point its to late to switch to another system, and yet again keep your own data as it is used to be.
How naive are people these days to fall into this trap? Maybe people starts to wake up, thats the real reason for the growing resistance... :-)