::Spoiler Alert::
Taking this from the wiki about the Primals...
"The Ascians have been teaching the means to summon primals, and for ancient Allag, the means to bind them. The creation of primals has an effect on Hydaelyn, seemingly as part of the goal to revive Zodiark."
Since summoners learn their skills from the ancient Allag people who were taught these techniques. Does that mean that every time an egi is summoned that the Mother Crystal is damaged in some fashion since it states that primal summoning has negative effects on the flow of aether.
Is it possible that by learning these techniques, that Summoner's themselves could become the source of Eorzea's destruction?
Oh and give me more Egi's Square... stop being so tight. I want Shiva, Alexander, Ramuh, Bahumet and Ravana, all in egi form.