For physical therapists, it's a DPT, not a PhD. There have been so many developments in sciences, physical therapy, etc, over the past 2-3 decades that requirements have been greatly increased to provide more background. It's up to the DPT to decide what therapy, exercises, massage, or other treatments are best suited for a particular situation. Each patient's needs vary.
Perhaps you'd prefer a massage therapist to a DPT.