Yeah, the more I think about it, the less sense it makes. Firstly, he has a dragon. That dragon could kill us way more easily than the rest of the patrol. It would be faster and more convenient, and just smarter in every way. He could have his moment of presenting the weapon himself rather than leaving the possibility that his patrol mess up. Secondly, why wouldn't he take us to be cleansed? It's perfectly possible that Githyanki don't actually have a way to stop ceremorphosis, but Lae'zel seems to earnestly believe that they do. It's possible she was lied to, but I can't think why her people would lie to her about that. She's demonstrated already that she's willing to kill herself rather than be turned, and the Gith don't strike me as the sort of people to perpetuate a lie like that among themselves.
