The Egi Conundrum: Heavensward and Beyond!

[Akiza]

SE would have to add primal boss mechanics to the Egis to promote pet swapping because each Primal fills a unique niche.
Ifrit- Melee DPS that has single target bursts
Titan - Multi-target Tank that provide party wide defense shields and buffs
Garuda-Massive AoE Burst potency
Leviathan- Sustainrd Single target Damage and interupts.
Ramuh - Sustainded AoE DoT and interrupts
Shiva- Crowd Control Pet with AoE heavy and slow.

[Jranmaia]

SE would have to add primal boss mechanics to the Egis to promote pet swapping because each Primal fills a unique niche.

They wouldn't. they just need to add a simple skill that lets you insta summon a new egi and some mechanic that forces the egi to be swapped by either killing it or making it weaker over time.

Them unique niches you suggest wouldn't counter the issue, on 99% of fights Leviathan would be used in your suggestion you might swap maybe once to Garuda since I've yet to see a fight with sustained AoE instead of burst. You will still be summoning 1 pet at the beginning of a fight then maybe swapping it once IF your lucky. Doest really bring the feel of a SMN out anymore than its current state.