As a layperson on this subject who has done some research, all studies and doctor’s personal examinations point to this being a mental disorder, and its unlikely to changed as no evidence to the contrary has ever showed up.
The “CDC” has basically already put an end the DOP label and sent a letter out telling doctors basically not diagnose it as such, they know this is a real physical ailment. As far as Morgellons being all in ones head, that is a dead issue.