I have to agree with this.
See there's multiple camps when it comes to the Summoner:
1. Those that are fine with it.
2. Those that want stronger pets.
3. Those that want a summoner theme to be more apparent.
Sometimes 2 and 3 mix a bit.
I'm with camp one. I've played a Necromancer in both Everquests. That was a pet class done right. You had a pet, you had buffs for the pet. But it was an extension of you, not the other way around. It didn't, couldn't do all the work for you. Those in camp 2 frequently want a pet that is badass and able to do tons of damage for them. Unfortunately it makes for a simple easy to use class that will be first in the line for nerfs. You just can't explain why your DPS should be as high with one button as a Ninja, Dragoon, or Black Mage has to do with half a hotbar.
In FFXIV the Scholar and Summoner are done well. The pets are a glorified DoT/HoT with some added buffs. What you all need to remember is your Class IS Arcanist. Your Job is Summoner. Look at other Classes and Jobs. For example, what do Paladins tank with? Gladiator abilities augmented by Paladin skills (Shield Oath, ect). What do Black Mages damage with? Fire, Fire 2, and Fire 3... all thaumaturge abilities.
So it only makes sense that the majority of damage from a Summoner comes from its Arcanist abilties, Bio, Miasma, and Ruin. And then augmented by some flashy abilities from their summons. Much like Rogues are augmented by the mudra/ninjutsu abilities.
Now those in Camp 3 I feel for. Sylve had some interesting ideas and I think that should be focused on. Lets be honest, perception is reality and even if the Player is doing all the work. If the abilities looked like they were coming from the pet, there would be alot less complaint. Here's a list of ideas of my own they could do:
1. Spur makes the Egi bigger and its attacks flashier.
2. Enkindle effect looks like the Primal's version of the attack.
3. Limit Break summons the actual Primal and does one of its moves. Same AOE Potency attack as before, just different look. Maybe even MegaFlare from Bahamut at some point in the expansion.