Yes. As a warlock, I think these are good. I'm thinking the titan gets extra defence to all melee damage in PVE, the hunter creates less aggro and does more sniper damage, and the warlock extra damage could increase with each kill of an enemy type (permanent increase) and perhaps even a mode that drains all your abilities but you can predict enemy movements by like 10 seconds or so.

Bungie purposely made every class equally effective with all weapons.

the titan should not wast a bonus thing on shotguns