Has anyone seen power cycle corruption in industrial SD cards?
We had this on microSD cards used on the OLPC XO-1.5; an internally mounted rarely removed card; the card would become unusable and unresponsive.  Our failure analysis was very extensive.  We worked directly with the vendor.  We solved it by leaving power to the card for a few seconds after host power down.  We also added a discharge switch to avoid a slow fall.

We were otherwise controlling all other relevant specifications of the card in the relationship with the vendor, and I don't recall any mention of "industrial" or "consumer" rating, but one of our design goals was low cost, so I'll guess "consumer".  Perhaps "industrial" was a matter of binning.  We did require five or six years endurance though, to ensure product life.