I think the simple tools do a great deal to improve the quality of our daily lives, but they are not intended to heal, they are intended to help. It’s the difference between handing someone a crutch vs resetting the broken bone in their ankle. Of course we need the crutch. But it’s not going to make our ankle well unless the bones themselves are reset.
And when therapists are trained to treat a shattered bone the same way as they treat a sprain, and it doesn’t work—well, that’s hardly surprising.