Opinions etc, but i personally think it's the worst designed Summoner job in any FF game. The egi things are atrocious and the other two don't look cool at all. The DOT crap is silly for Summoner, Always felt like a failed job they had ambitions for but quit.
Really with how they made the Primals a monumental portion of the story vs. having a job that could summon them... it has to be the way it is, more or less. If it were rocking fully summoned Primals and controlling them, the story would have to be vastly different.
I can agree the Egis are sorta ugly, particularly Garuda Egi, but I like'em fine, and they can be turned into three flavors of Carby now. The Demi-Primals are literally just smaller versions of Phoenix and Bahamut, and really only barely. They look and feel great. Especially Phoenix.
As far as renditions of Summoners go, let's have a look at series history for a bit of insight on FFXIV SMN.
Summoner first appears in Final Fantasy III on the NES. There were three jobs that could summon, Conjurer, Summoner, and Sage. Only difference between them was the level of the summons they could use. You could buy almost all of the summons from shops, but Bahamut, Leviathan, and Odin all had quests/battles to obtain them. Though in the Eureka secret shop you could just buy them... Functionally, all of the summons merely dealt non-split damage to all enemies. This made summons functionally identical and mildly inferior to Black Magic. So its first appearance establishes it as a job for flavor.
It next appears in Final Fantasy IV, being the signature of Rydia. However, until acquiring Leviathan and Asura, most of the summons she has are inferior to Black Magic, particularly the spell Virus, later translated as Bio. Virus had a low cast time, middling MP cost, no monsters that resist it with some weak to it, and it inflicted HP sap. For these reasons it did better damage than Mist Dragon, Ifrit, Shiva, Ramuh, Titan, Chocobo, Sylph, and Bomb. Unless they were hitting an elemental weakness across all targets. Virus was even more cost effective than tier 3 Black Magic elemental spells, if they could not capitalize on an elemental weakness.
Next up is Summoner from Final Fantasy V. Here we have Summoner available after the second crystal, with summons once again purchased. This time, however, instead of just ultra powerful summons requiring a dungeon trek and boss fight against the summon, it's pretty much every summon outside of a couple obtained from random battles. Many summons in this game offer utility like status or damage protections. This is the first time Summoner's identity really shines.
In Final Fantasy VI, every character may summon using equipped magicite. Similarly, the class is reduced to equipment in FFVII as well. In FFVIII the summons had personality to an extent, and some of them acted as characters or NPCs, and they have major story significance, but they're universal and can be used by anyone again.
FFT - Big AOEs that take a mighty long time to cast, somewhat showy.
In FFIX we get a return to form, long showy animations and lots of style over substance. Both SMNs have white magic though, meaning for the first time, the games enforce a hybrid class of healing that has big damage, somewhat counter to previous incarnations.
FFX, the game story focus is summoning, and they are way more fleshed out versions of GFs from FFVIII. Complete with victory poses!
FFXI, you know more than I do probably.
FFXII, big back story, basically enslaved to glyphs by the gods. Beat'em, assign them to characters, keep them on said characters forever or whatever. No real SMN class again.
FFXIII, no SMN class, just personalized summons for each character.
FFXIV - ancient Allagans use their knowledge of Primals and arcanima to pit primal power back against primals, allowing them to fight without getting tempered. In addition to Egis, SMNs may channel the powers of primals directly in a, "Trance" that ups magical power and sharply reduces cast times.
FFXV - big story time, whiny gods with one baddie. Summoned only by Noctis with a quicktime hold down the button, button prompt. Or as the story demands.
So basically the series always flip flops between having just one or two SMNs, or letting the summoned monsters be a focus and letting everyone summon. FFXIV SMN clearly takes the most inspiration from early drafts of the class, where the SMN has other avenues of attack. Particularly calls back to Rydia. I wouldn't really consider it a travesty against the class, because the class itself is often dissolved entirely, but when it's not it's always different anyway. Personally I find the FFXV variation to be the worst,