It's an indication that something's wrong with the system. We'd get better overall health outcomes if we tested everyone and told a large cohort of people "you do have cancer, and there are these possible treatments for it, but we recommend you don't take any of those treatments and just hope for the best". But between doctors and patients and other healthcare participants, we collectively can't do this - a large minority of people will freak out and demand treatment and the healthcare providers will feel compelled to go along with it.

Perhaps this plan just needs better marketing. Instead of dividing tumors into benign and malignant we could have a third category for malignant but slow-growing.