Where has it been stated that the titans don't? I've never seen AU Eonar in'game. But at the same time, ill admit that it's never stated that they do. Why i mentioned the Doomguard is that the titans used them to police misuse of Fel and Necrotic magic, so it would not be to much of a leap of logic to assume they also policed time magic. Also Aman'Thul is presumably the first entity to awaken in the physical universe and could be the reason that time in his own words answers to him. So why couldn't a fully powered pantheon(In my own theories parameters) with the help of doomguards destroy errant timelines or negate them in the first place. Aman'thul and the Pantheon could also have empowered beings like Nozdormu to watch over specific planets, but with there death and the doomguards going over to the BL, it would be impossible to stop every mortal. Did Aman'Thul empower Nozdormu before or after his death? I think it was before but i could be wrong.