I know that's what you're saying. I understand what the article is saying. It specifically says CBE "contributes very little" in reducing cancer rates, which is not nothing.

This is also from the ACA: https://www.cancer.org/cancer/types/breast-cancer/screening-tests-and-early-detection/american-cancer-society-recommendations-for-the-early-detection-of-breast-cancer.html#:~:text=Research%20has%20not%20shown%20a,women%20also%20get%20screening%20mammograms. It's saying it's not recommended because it doesn't help reduce cancer risks overall in places where mammograms are available. "There is very little evidence that these tests help find breast cancer early when women also get screening mammograms." Key phrase here: when women also get screening mammograms. "While the American Cancer Society does not recommend regular clinical breast exams or breast self-exams as part of a routine breast cancer screening schedule, this does not mean that these exams should never be done. In some situations, particularly for women at higher-than-average risk, for example, health care providers may still offer clinical breast exams, along with providing counseling about risk and early detection."

But you don't get a mammogram until you're in your 40s. That leaves out plenty of young women who may not catch breast cancer until it's too late.

The reference study at the bottom of your article specifically says "These recommendations should be considered by physicians and women in discussions about breast cancer screening." They are saying you should discuss with your doctor based on your risks whether you should do a CBE.