Det stämmer. Det är mest för att visa "Den här killen ser dig så du blir av med Concealment".
Andra tillfällen, minfält t ex: "Before announcing any mine attacks exposed by the movement of a stack topped by a “?”, the DEFENDER may force the ATTACKER to momentarily reveal a non-Dummy unit in that stack to show that an actual force exists there. If he cannot, or if the stack is friendly to the DEFENDER, the Dummy stack is removed"