Note that the linked page suggests using CT scans for coronary artery calcium check only in some cases (borderline and intermediate risk by other indicators, not lower or higher risk), not mass screening.
Concern about increasing cancer risk from CT scans is non trivial, according to Radiation from CT scans and cancer risks | National Institutes of Health (NIH) , which suggests that 93 million CT scans in 2023 “could result in almost 103,000 future cancers”.