Every other condition in your panel has somewhere to go. A knee goes to physical therapy. A heart goes to cardiac rehab. Cognitive decline has had no equivalent, so it stays with you and with the family.
That is not a gap in anyone's practice. It is a gap in what has existed to refer into.
The clinical foundation is an NIH-funded randomized controlled trial out of Harvard Medical School and OHSU. Patients hold onto their abilities longer than a diagnosis would usually predict. Some have returned to leading hikes, playing Go with friends, painting again.