
Originally Posted by
LineageRazor
If you mean you can't have summon a Primal while the same Primal is already active, then yeah, the story seems to indicate that's the case. I don't think there's been any in-game support to the idea that trying to resummon a Primal that's currently already summoned will increase its power, but it seems reasonable; more prayer and faith equals more power.
Imprisoning the Triad was one goal, yes, but I'm pretty sure the Allagans also wanted to tap their power, much as they did on a larger scale with Bahamut later.
I initially mistook "You can't summon the same primal twice." as meaning consecutively. That is, summon Ifrit, Ifrit is killed, you can never summon him again. That's obviously not true, as the original Hard Mode and Extreme Mode trials were exactly that: the same primal summoned again and again, each time with more resources (first, additional crystals, then additional crystals and beastman sacrifices).
In regards to the "brain damaged WoL" theory, the devs DID say that a soul of sorts is called into the Primal from the aether when it is summoned, and this might have an affect on shaping the Primal's appearance. Assuming that the Lifestream of the First is a sundered copy of that of the Source, it is very unlikely that the same Primal souls would be available. Of course, now that we've done our thing, shiny new Primal souls may now be inhabiting the First's Lifestream, so future summonings of those Primals on the First could well look identical to the ones we summoned, even if summoned by someone who had never seen the original. (Such a thing is unlikely, of course, unless Ryne decides to spread the word of exactly how we restored the Emptiness to life.)