They dont need to increase that. Every armor piece gets an armor mod. You can pick between grenade /melee and super having reduced cooldown. 5 armor pieces = tier 5 in 1 of those 3. And i think 3-4 supers per strike is enough in a beta. If there is 3 of you that means you have 12 total super in 1 strike. So unless people are dumb and use their super on the boss (not making orbs) this is plenty.