This is awesome... Why couldn't we have this?

[PArcher]

SNIP

The reason we went/go to each Primal ultimately doesn't matter; because we know what danger a Primal is to the world, we will seek them out and destroy them once we know of their existence and can (at least somewhat) safely fight them (if we're not ambushed).

Even the Warriors of Darkness are seeking them for the same reason. That should tell you just how dangerous they are. Does't matter how kind they are to their followers or even their enemies, how just their motives are; they sap the land dry of aether, they need to be destroyed.

As for why each is summoned, you got some wrong.

Ifrit is just summoned; he has almost ALL the Amal'jaa tempered, and tempered to perpetuate his summoning. Every time they get enough crystals they summon him, for no reason other than his power lust.

Garuda is similar; she has nearly all Ixal tempered, and they seek to give her power since she has promised them their wings back (which, incidentally, is one she cannot keep. The tempered just do not know that)

Ramuh was summoned mostly due to the Garleans, as was King Moggle Mog XII, but also due to refugees moving through the area; Moogles and Sylphs scare easily, even when the threat they see isn't as big as they think (the Garleans, yes. The refugees, no) [EDIT: Keep in mind too, we did talk to Ramuh and prove that we are trustworthy after showing him the Crystal of Lightning Frixio gave us. He challenged us to prove it further. He also forbade the Sylphs from summoning him again]

I'm not actually sure *why* Leviathan was summoned this time; defense of the Spawning Grounds (which the Sahagan took from Limsa in the first place) is plausible, but at the same time the Priest who summoned him was baited by Elidibus, so the real motives become hazy. However, Leviathan just wants to drown everything (tempering and literally with water) so...