I think the OP's choice of dungeon to go through is a great example of why groups DON'T want summoners/scholars. As a Scholar I can't get past Locksmith, because Eos dies by the third stack (at best). So, I'm basically stuck using sub-par AoE healing in a fight that's heavy AoE damage with no pet support.

I'm assuming the same happens with Garuda/Ifrit, and thus our DPS will suffer because of it. The argument can be made that Summoner isn't behind or too far behind other dps classes, but you take out our pets and we fall hard (and btw any time re-summoning is lost dps, and thus still nerfs us for the fights). Honestly Locksmith is the biggest issue, as I can usually move the pet to/from most AoE attacks, but it doesn't help when it's a global AoE.