Prostate Cancer Survivor here. As noted in the summary, the reason that Doctors want to relabel it is because of the current aggressive treatment options. And by "current treatment options", I mean the options that insurance pays for. There are (except in certain exceptions) two: Radiation or surgery. Both of these options have major quality of life issues. Fortunately, many leading edge treatments are in the medical pipeline. Unfortunately, because of lack of long term data on treatment efficiency rates, they are not covered by normal insurance.
I was diagnosed with prostate cancer at the relatively early age of 55. Luckily, my primary care doctor started PSA testing on me when I turned 50 (which is 5 years earlier than medically recommended). After looking at all the options, I opted to get a High Intensity Focused Ultrasound (HIFU) Treatment. But I had to pay for it out of pocket, which was a $25K cost.
HIFU is not perfect and they don't claim it is. It has an 85% success rate and I was unfortunately in the 15% of people where the cancer came back and I'm under surveillance now. But I can highly recommend the procedure to anyone considering it as it was an outpatient procedure, I had no complications, still have bladder control and yes an erection. And I can be re-treated in the future. I'm already looking at some of the immune therapy options for "post treatment" cleaning up of any remaining cancer cells.
FYI, if you have prostate cancer and live on the west coast of the United States, I can highly recommend the UCLA Urology Department, which is where I got my HIFU treatment.