@dalias @lanodan @annaaurora huh, fascinating! I guess it's just whatever we happen to have stumbled upon, because my intuition is exactly reversed!
I've come across various companies doing platter-level recovery commercially (i.e. not just in an academic setting), but I haven't really come across flash recovery.
That said, it's all super expensive, and I wouldn't rely on it. If hardware failure threatens data integrity, that generally points towards the storage being improperly configured.