Originally Posted by
Xanato
Eons after Sargeras left the Pantheon, while the titan-forged went about their duties, Sargeras decided that the only way to save the universe from the corruption of the void lords was to purge it in flame. Unleashing the demons he had imprisoned, and in the process of doing so transforming himself into a twisted, demonic being of hatred, Sargeras began his Burning Crusade to eradicate all life in the universe. Shortly after the newly-formed Burning Legion eradicated its first world, Aggramar arrived to confront his former master, having sensed Sargeras killing the planet's constellar. He demanded an explanation from Sargeras, but when he realized that his words would not sway him, Aggramar challenged the fallen titan to single combat. The battle between the two raged until, in an explosion of fel and arcane power, both of the combatants' blades shattered. Heavily wounded, Aggramar retreated and informed the Pantheon of Sargeras' betrayal.
When the armies of the Pantheon and the Legion confronted one another near the world of Nihilam, Aggramar made one last attempt to reason with Sargeras. He approached his former tutor, unarmed, trying to persuade him by recounting tales of the glorious battles the two had fought. But Sargeras was set in his ways. With a howl of fury and sorrow, the former champion raised his blade and struck Aggramar down, nearly cleaving him in two. Outraged by this murder, the Pantheon launched an all-out assault on Sargeras, but, unable to stand against the fallen titan's fel might, soon perished as well.
-World of Warcraft: Chronicle Volume 1, pg. 49-50
The Pantheon confronted The Burning Legion near Nihilam. Aggramar tried to reason with Sargeras one last time, and was cut down in front of The Pantheon. This started the war which ended in the defeat of The Pantheon. Just as Sargeras summoned a great fel storm to finish the Pantheon off, Norgannon wove a protective shroud around the Pantheon's souls, launching them into the Great Dark just as their bodies were destroyed.
-World of Warcraft: Chronicle Volume 1, pg. 50
It says the protective shroud around the Pantheon's souls. It doesn't exclude Aggramar and doesn't specifically include him either. It could have easily included Aggramar who had perished just a little earlier in relative time to the others.
Show me where you see this "bubble" that didn't include Aggramar's "body".