Not getting his head cut off is a plus! This is a positive. It's a step in the right direction. So obviously he's with her up until the 'follow any orders', which has him weakly getting out a, "hey, wait a minute-"

But, sword. Sword! Sword and angry woman, kind of important details, so he shuts up. To be fair, aside from the follow orders thing, it's a pretty reasonable request. (Demand.) This isn't his army, and maybe he doesn't want to play soldier anymore. What if the Inquisition ends up on the wrong side of something, and he doesn't want to fight an enemy? (Would he even know to question it? He recognizes, at least, that the more he learns about Thedas, the less he understands. And alien demon things? Need fighting.)

"Yeah, okay, sure!" His hands are still up by his head to look non-threatening, in case she has reason to come at him again. "Sure, yes, those things, whatever, fine, yeah! I'm not here to hurt people that don't need hurt, okay, I'm not a demon, I'm just a guy trying to not die in your crazy backwards world of magic okay!"