I would suspect that Biggs would have asked the obvious follow-up question "So the data does exist somewhere". He didn't because he knows it does exist.
Looking through the interwebs, the maricopa officials backed up the data in preparation for the original audit so that the software / hardware could be tested. So yes, I know that no information has been lost because it was already audited. It isn't actually covered in the video, but the data was also provided, but just not where the auditors expected it to be. Also, the auditors themselves confirmed that the data was recovered, so nothing was lost.
As to the FBI, if I back up files in the cloud and remove them, and THEN the FBI askes for my computer, I wouldn't have to provide the data in the cloud unless specifically mentioned in the court order. Based on the subpoena they only asked for the SQL server itself, to test the function. This makes since the data itself may have been "correct" but the server itself may have been tampered with, so each needs to be tested separately.