Judging from the extent of the damange, the box should have been dented in some way, the onwner should contact Fedex for follow up, there should be transit damage insurance coverage.
the person who pack the parcel should liable for the damage. fedex is quite professional in handling their parcel but maybe to some extends there might be some mishandling. but if the packer does a proper packing with foams, bubbles wrap and more cushion, do you think it will damage this way? i myself pack machine parts assemblies which cost 10 times the cost more than this len and never encounter such issue with Fedex.