The concerns expressed seem a bit silly, unless the various Euro systems didn't take the very basic approach of using open standards and avoiding lock-in. Oh, and they should be backing up their data somewhere besides "in the cloud".

If those very basic precautions had been taken, migrating to a Euro cloud, or a private environment (open cloud stack) would be trivial.

If not, a lot of people should be fired...but granted, there are a lot of stupid people out there...

All that said, I'd say the concerns around this are vastly overblown.