or it's a cant of compulsion and Mallahet is loading in information, by that i mean supplanting the emperors thoughts with his own. Later on he thinks it's his own idea all his own, and conphas remarks on it's brilliance, and is surprised his uncle came up with it.
Or something else.
I think considering his close proximity to a dunyain we can assume it wasn't his own idea. Not sure i have settled on a mechanism for it yet. Just the inner-thoughts echoed somewhat the probability trance.