The least nonsense thing I can think of is that they weren't paying their bills. They weren't paying rent, the landlord locked them out and repo'd their servers, or something similar. (perhaps they were inspired by Elon Musk's recent antics?)
If that were the case, they would not disclose that that's what happened. If they disclosed that, all of their other customers would immediately begin migrating their data; not tomorrow, not next week, now.
If there were any excuse they would give it. "We were hacked!" "It was a disgruntled ex-employee!" "The datacenter burned down!" "It's those dirty EU data laws!" etc.
Shutting down the data center and deleting all the data (without migrating) at the same exact time and that was Plan A--nah I don't believe that.