It is not true.

Moreover, regarding negative comments by WGA pilots who are flying the UPS contract, those with whom I've spoken have had nothing negative to say about the flying or the UPS arrangements. They're doing more landings, more regularly than they might otherwise, the flight duty is light, consistent, and straightfoward, and UPS is a professional organization that's easy to work with. One would probably need to qualify any complains by the complainer to put them in context