Summoner Summons

[Enkidoh]

The other main reason why so-called 'traditional' summons simply cannot work in FFXIV is because of the game's lore - the Primals are extremely dangerous, and require so much aether to summon, one solitary summoner alone simply cannot cut the mustard. Each time the beastmen summon their Primal, they require numerous SMNs all evoking the Primal at once, consuming a huge supply of crystals in order to do so. And that says nothing about the malevolent, negative influence a Primal has on those who summon them (although that is excused for player characters, seeing as they have the Echo and all).

Hence why the player SMN Job only summons an egi and not the full Primal. You're only summoning a sliver of a Primal's power which manifests as the 'egi' form and not the full Primal itself, because it's the only possible way. Not to mention the very secret of summoning was taught to the beatmen in the first place by the Ascians anyway so they kind of have the monopoly on summoning (the player SMN Job was a short-cut technique developed by the ancient Allagan Empire). So yeah, egis will be staying I'm afraid.

[Tupsi]

The other main reason why so-called 'traditional' summons simply cannot work in FFXIV is because of the game's lore

Same lore in FFXI, actually as they're pretty much the "creators" along side gods like Altana, Promathia, Zahak and the elemental beasts of Adoulin - hence why in XI you also only gain a 'fragment' of their power as if they fully awaken, let's just say that fan will be covered in brown matter.