Yes, I understand that, but your comment is easy to read as being about all cancer, and an awful lot of treatment is done prior to it spreading.

Much process has been made in heart disease, but cancer? Not so much. is really the problem, as early stage treatment has gotten vastly more effective over the last 20 years (My father succumbed to metastatic cancer in 1994, I pay some attention to the overall progress in addressing cancer).