To be fair, you can take it as a more casual way of him saying "I can't do anything because, you know, I'm kinda role crushed here". That said, Flower's point is silly- there are some passives that can't be rolecrushed. That said, I don't think he's TAC by reaction, he seems genuinely annoyed about the suspicion being from that, and then he puts the totality of the suspicion onto that and deflects there. It's behaviour indicative of someone caught for the wrong reasons.