At the end of the blog post, they mention that they're working on creating the ability for European companies to store data in Germany if requested. This is interesting as the implication is that European businesses don't see the US as a safe place to store their data anymore.
It's not about safety, it's about EU privacy laws and Safe Harbor. It is desirable to store the data in-country to avoid the hassle of requiring/finding a provider with an EU approved Data Protection Agreement.
