So, you do your PT at home, right? Going to the physical therapist 2 or 3 times to learn what exercises to do and how to do them makes sense. Having a therapist come to your home makes even more sense. But going to the PT clinic twice a week for 6 weeks, for example, is stupid, especially when you have to drive yourself there. You've got to get groomed, get dressed, and get through traffic to get there on time when you can barely walk - stupid. It gets the facility paid, but it doesn't do me any favors.
Going to PT doesn't do a thing for me. Doing my yoga and my meditative tea rituals, lying on my inversion table, and taking my medications every day helps me get around pretty well.
I fractured my spine in 3 places over 30 years ago, and after I was well-healed from surgery I went on to physical therapy. Back then, your therapist was fully informed about your condition. They'd gone over your history, images, treatments, and progress up to that point, and tailored your rehab program accordingly.
These days, the only thing the therapists know about you is your name, DOB, and dx code, and, like a lot of other things, you get a one-size-fits-all, cookie-cutter "rehab" program that will bring some relief to patients with the most common ailments, such as degenerative disc disease. And, as you probably know, those particular exercises do nothing for your degenerated disc or the inflammation and nerve disturbance it can cause. They're designed to strengthen the muscles supporting your spine, and they're very simple.
With a demonstration or two, or even just a few illustrations on a sheet of paper, you can definitely learn them and do them at home.