What is the point of the ‘Traffic Cost’ metric in the SEMrush Organic Research Positions Report? What does this metric mean?

Traffic cost is a value entered by a user
Traffic cost is an estimation of how much it would cost to bid on organic keywords through Google Ads
Traffic cost is an estimation of the budget for a Google AdSense campaign
Actually, this screenshot is taken from the Paid Search Positions Report
Traffic cost is an amount of money made with Google AdSense