Because Gods want him to live. Simple as that. They wanted Horus to fail. They wanted The Emperor to survive in his vegetable state. They are not interested in ruling. They are interested in feeding of human emotions. With eternal war they have eternal feast. They not only won over the emperor. They won with Perfect Conditions. A little stronger > and horus would have destroyed humanity. A little weaker> and the emperor would have not been mortally wounded. It was Perfect victory for chaos.
how you can't tell that is the emperor that let the gods survive waiting for something?there is a lot of " if this happen the emperor come back". it's all in stale until the final chapter, it's all in equilibrium: none can prevail and all faction have a secret "i win" button.
the imperium have multiple "I WIN" every space marine have "the primarch that come back" grey knight have the : terminus drecree http://wh40k.lexicanum.com/wiki/Terminus_Decree inquisition have varius sub faction that plan to create a "god incarnate" or a "reborn emperor" http://wh40k.lexicanum.com/wiki/God_Incarnate http://wh40k.lexicanum.com/wiki/Thorians adeptus mechanicus have: "we find a complete STC!!!" *FAP*FAP*FAP*
Those aren't "i win buttons" those are theorys similar to Ymnead...and Primarchs are certainly not i win buttons...for the imperium at least ...do we need to remind what happened to Dorn/Gulliman/Lion? And the Terminus decree sounds like a self destruck system that will send the galaxy back to a situation similar before the emperor for humanity only...Great plans all of them...i dare that corpse to use any of them.
You forgot the rest Still others believe that once read aloud by the Supreme Grand Master, it will perform its rite and bring to a halt the ancient and arcane machinations of the Golden Throne, ceasing their living-giving support of the Emperor's long dead body and freeing his soul to be reborn anew. (This is the most "likely" theory as it is said that the golden seal which rests upon the box containing the decree is one of a matched pair, its partner found only in one place: on the Golden Throne itself) which sound like Ymnead to me... And primarchs are not "i win " for sure ...ask the IF...
Ymnead is the "I WIN" of the eldars. A free from chaos eldar race is capable or reincarnate their souls.
You forget that it took a single "new-born" Chaos god to eat all the eldar gods,save Isha who is Nurgle slave/Khaine who got claimed by Khorne/ and Cegorach who is hiding, do you really think that a new eldar god made by the souls of the craftworld eldar only,Deldar dont use infinity sircuits and neither do exodites as i remember(might be wrong on the exodites), will have a chance against Slaanesh or that even if he stood a chance Tzeentch would allow him to exist? And the only thing that might give some trouble to the chaos gods is if the AM wake up the void dragon....which by the way doesnt sound very good for the rest of the imperium..
