Tormach set up pathpilot and update it for the use of their machines , I don't think tormach has any interest or obligation to be wasting costly time supporting software that isn't being run on their machines . There simply isn't anything in it for them .
Good luck even for a tormach owner to have them support a mod . I had a quick question about adding a 4th axis to my 440 when they didn't have that option available , their answer was any mods will void warranty . They didn't answer a simple question
I honestly think it would be wiser for a community of non tormach users to use linuxcnc and modify it to suit their needs . The right ideas , interface , and mods could be welcome in the linuxcnc community . I've got machines running on axis and I haven't used qtdragon yet but but it looks to be better setup than pathpilot