There isn't room for both?
If you just removed egis you'd just be making a different crowd upset with SMN, so it's kind of a lateral move from the Dev's perspective, not making it "better."
I think it'd be healthier if they added more big summons and had the Egis be the thing you have out while between big dudes.
Axe the trance thing though, give each summon a different reason to be pulled out and the player has agency to summon one over the other, not the current system of simply having to rotate through them all.
