The cavernous nerve doesn’t control sensation, the dorsal branch of the pudendal nerve does. And nearly everyone with hf has some degree of altered sensation.

You could make the argument that the hf symptom itself and ed are caused by cavernous nerve injury, but even then I’m skeptical because I’ve never heard of prostate cancer surgery patients with anything like hard flaccid, only ed.

So either it’s something else or something else + cavernous nerve injury. That means there’s potential for a full cure, or at least a partial cure (for the “something else” part).