First off, don't trust what the article quotes me as saying. I didn't say any of that. I think that was their own IT person trying to paraphrase what I said.
Only certain folders (ones containing work stuff they wanted back) were wiped, and those couldn't be recovered. They were moved to the recycle bin first, which is how I could tell when it was erased. But then the recycle bin was wiped. The other stuff was just recovered through RAW scanning the drive.