Screwed up BOO - Do you intervene?

[JEL]

Two runners pass third on the way to the plate. One runner misses the touch, the other doesn't. On the defensive appeal, don't we make them tell us which runner missed?

7-2-D starts by stating "IF BATTING OUT OF ORDER IS DISCOVERED", but doesn't say discovered by whom. We would also tell a scorekeeper that BOO must be reported and appealed by the coach were they to point it out, so who must do the discovery?

I can see this arguement both ways, but tend to lean towards I'm keeping quiet. That is also what my wife said I would have done anyway. She'a probably right.