I also like to point out that we still don't have a concrete definition of "Primal" in relation to a sentient being inside that physical manifestation.

We assume primals need followers to summon them because thats how we've seen it done. We can conclude that it doesn't need to be a deiety to summon it though. We also know the normal rules don't apply in the void.

So who's to say that the rules ofa primal's existence aren't different there as well. Perhaps the howling atmoses them selves were the "primals" and the prime crystal summoned then via its own aeither as a last resort

I submit that a primal is simply any aeitheric construct summoned via a crystal conduit to channel and focus the large amounts of external aethier needed to summon them.

We know after all that summing more than an Egi via the allagan method WILL kill us.