The worms generated by AE just aren't strong enough to make a difference against peers or near-peers. We're a support type. With debuffs, buffs, and multi-attacker penalty, they can't be safely ignored; One AOE attack, and the worms will be dead. There won't be a multi-attacker penalty; Every time they attack the worms, they're not attacking us; If the debuffs hit, then we're better off straight up attacking them, if they don't then we should debuff again.