Do you remember in the 1970s and earlier when people didn't talk about cancer? No, they whispered about it. So-and-so has cancer.... when's the funeral? Nice sequence there. But that is how life was. No one talked about cancer because it was a death sentence. No one really knew anyone who had cancer and survived. Now as adults, we probably know people who have had cancer and didn't die. And are actually they are thriving.
But as a cancer person (when does one end being a cancer patient? When one is no longer here.) it is still very scary to be diagnosed with cancer. Just because it is easier to diagnose and treat now, it doesn't mean that it still isn't scary as hell. Cancer kills a lot of people. There is a lot that is not known about cancer and its diagnosis and treatment. More is learned every day. And the proverbial cancer cure is not yet available.
I am not sure if saying a breast cancer diagnosis is not as scary yet is premature or not. It probably is. Because most of us grew up with cancer as a whisper and not as a dinner table conversation. And more generations successfully live through cancer, it will still be very scary. If you choose to disagree, wait until you are diagnosed.