Exactly, but the issue is that a person might be willing to pay that compensation fee for the original bag back.
Some bags had valuable artifacts, a camera used by NASA, etc. I’m sure the airlines didn’t compensate for this sort of items.
Regardless, the company selling this is not at fault for selling “stolen” items. They believe the airline has done its due diligence in trying to find the owner and are now reducing waste by giving the items a 2nd home.