Why do the Egis appearance look awful and unimpressive

[Amberion]

Currently the whole plot is building up to our Free Companies actually being able to summon Primals fully.

True, it's just from a FF series perspective, it makes more sense for the Summoner job to summon them then just random people.

And even then they could have made the plot work. If a a summoner summoned a de-powered one, then an FC would be more people = stronger Primal.

But meh, all that is "What If?" arguments since it's really hard for them to rewrite what's already in the game.

[Nalien]

True, it's just from a FF series perspective, it makes more sense for the Summoner job to summon them then just random people.

But it doesn't from a MMO perspective. Summoner is one of the things you think of when you think Final Fantasy and it's really one of the most well know, overpowered, and flashy Jobs in the game. FFXs story revolved around the Job. In a MMO though, all Jobs should be equal. Again, Summoner is already overpowered in these regards even despite the work they put in. Black Mage gets Flare. White Mage gets Holy. Dragoon gets Dragonfire Dive. Summoner? That gets Aerial Blast, Earthen Fury, Inferno, and that's just the "ultimate" moves, as well as a gap which will only become greater when Summoner gets Leviathan, Ramuh, and Shiva -Egi.

I'm more concerned as to why we didn't get Leviathan on FFX though

Wasn't Sin basically Leviathan? I seem to remember it basically being a summon Yu Yevon used to protect himself while he turned himself into a purple balloon. I felt it was a throwback to FFIV; Sin was the ultimate summon in Spira, in IV Leviathan was the King of Summons.

[Exodus-E]

Wasn't Sin basically Leviathan? I seem to remember it basically being a summon Yu Yevon used to protect himself while he turned himself into a purple balloon.

Not quite.
Sin is not exactly Water-based, but instead, Gravity-based, given that in order to get made, it had to attract a LARGE quantity of pyreflies, as well as having a Final Summoning as the base of it (which also explains why it had attacks such as Giga Graviton and the like).

[Nalien]

Not quite.
Sin is not exactly Water-based, but instead, Gravity-based, given that in order to get made, it had to attract a LARGE quantity of pyreflies, as well as having a Final Summoning as the base of it (which also explains why it had attacks such as Giga Graviton and the like).

Plot twist; Leviathan has always been Gravity-based, and used that power to mess with the moon to create tidal waves !

Heck, you'd have thought Braska's Final Aeon would have been Water-based, rather than whatever that was. Jecht was a Blitzball star after all...