I'm just thinking of how to make everything into wide spread propaganda... Nothing right now would adversely affect the empire except for maybe what's happening on Xythae, since the planet still has 20% Human population, the planet wide bombardment of the surface would also affect them, at least that's what I'm thinking, unless there's something that would protect them from that, 20% is still pretty huge in population and plus he didn't mention whether the local Human population was also exterminated in the process of the coup.

EDIT: BTW if it is confirmed that there are still humans on the planet I will intervene with a post ;)