If 117 were jointly applied to both passenger and cargo operations, FDX ALPA and FDX Management (and every other pilot group and company management, for that matter) could jointly apply to the FAA for a 117.7 FRMS waiver to the regulations determined most negative to both parties, with decades of past practice and experience supporting such a request.
At minimum, wouldn't eliminating the ability to extend to FAR maximum 16 hours of duty and FAR minimum 8 hours of actual rest domestically be an improvement?