You know, I’m not sure. I think, by the time he came up with the idea, Xephos was too deep in his own head to listen to anything. In all likelihood, it would have just postponed the result of The Rise and Fall. He would have agreed at first, then gone back on his word and snuck, skulked, and lied his way to the result he wanted. He wasn’t capable of listening to reason by that point, and it would have taken a GREAT deal of professional psychiatric help to get him to a place where he could (which probably no one would have been able to provide for quite some time).