User blog comment:SniperGhost/Gulliman's Return/@comment-25033299-20111021154923/@comment-1932673-20111021185650

A greatly reduced threat, given the depths of the warp and the power of the gods, that Chaos would remain a small threat, restricted to a few delusional marines. No, if anything the discord caused by the Serathi would empower the forces of Chaos and Chaos never gives up, a Primarch must be corrupted or most of the loyalist primarchs die because otherwise you have reduced the role of Chaos to much and ruined the setting.