I didn't study medicine but if we could lower the major barrier to people and their doctors having this info by including it in any other blood test done, e.g. not needing separate and potentially socially awkward procedure(which is the major barrier to testing), that would be an enormous increase in awareness? Without stats on what % of colon cancer evades early screening, it's hard to say what the impact would be but if you can easily do it with an annual physical vs. asking people to have a socially awkward but more accurate oscopy done, wouldn't that solve a big portion of cases by putting them in the funnel earlier at least and lead to better outcomes? Send someone a test result they may be positive for colon cancer and they will have approximately 0% objection to getting a colonoscopy to confirm or gather info, so the blood test could be a great solution.