Nah, that makes some sense. A DM controls non-player characters (NPCs). A Player controls their Player Character (PC). It sounds like she thinks she's a Player but she's actually just a PC, compared to the main character who is a Player equivalent.
I think he's referring to back when
Atou DID break control for a moment during the attack.
It exposed that even with cheated rolls, there are things 'dice can't influence'
In a previous chapter Takuto already pinpoint which
TRPG is Erakino working under.
So either he's abusing some kinda flaw in the transition of TRPG to 'real world' application or using the 'allowed' interaction from the overlap of his RTS system with TRPG system to cause these 'unknown/uncertain' answers to their attempt to investigate.