If they're going to migrate my data to an entirely new file system, I want that tested as thoroughly as possible. This happened during the update, when you can't use the phone by definition, and was removed completely before the update finished. Who cares, it's running the middle of the night.
Well, I care. I'm glad they did it, the migration went off without a hitch when they shipped it, I doubt I was even aware it had happened right away.