@
Hctaz, I'm putting aside your theories about Sargeras's reasons for possibly being inside Argus for now, as I've given my own view already, and neither can be proven true with full certainty until 7.3 is out. But I'm interested in discussing another part of your post.
It's true, every race on Azeroth holds power of some sort. Some were Titanforged. Some, were changed by Azeroth's magic. Some hold pacts with powerful spirits, or rose from Azeroth's wilds. Azeroth is indeed confirmed to be a special place. So your question about how Orcs and Draenei can compare is an interesting one.
Chronicles II shed some light on the Orcs, as coming from a planet unique in its own right. Unlike Azeroth, where the fifth element of Spirit was mostly absorbed by the Titan soul within, Draenor was its opposite, and had more of it than ever seen, giving birth to extra-ordinary life-force. Nature so overwhelming, it grew sentient and all-consuming. So the Titan Aggramar built the gigantic elemental giant
Grond to battle these sentient manifestations of nature. From the fragments and creations of the battle between Grond and the Sporemounds, would rise the colossi and Genesaur. The Magnarons. The Botani. And when nature's spores began to infect the elemental forces, the Gronn, the Ogres and the Orcs. So like Azeroth's mortals of Titan hands and Curse of flesh, Orcs are of Titan hands and nature's spirit.
Now what makes Draenei special? That, is unclear. They were in tune with magic, which could mean that they too were Titanforged. They embraced technology, science and all sorts of magic. This was aided in this artifact by an ancient artifact known as the
Ata'mal Crystal, which seems to have ties to the Light, but could also be Titan in origin. Whatever made them special, those that rose would change further. Most of them, by the infusion of fel. The rest, by 25.000 years working with the Light. Were the original Eredar weaker than a race born to Azeroth, before 25.000 years of hardships and living with the Light? It is possible.