FEDEX are on of the best paying companies to fly for and could therefore be quite fussy about who they employ. Hull loss rates like these are similar to the bad days of Korean Air or China Airlines, though still better than MK Airlines.
A freighter accident generally involves an old airframe with much lower value and a known cost of the cargo rather than hundreds of lawsuits from families of passengers involved. No shipper is going to stop using a company with a poor safety record as long as they are the lowest bidder. Perhaps these are the reasons things have got to this stage.