If I'm not mistaken picking up orbs when your super is fully charged doesn't recharge health, but grenades and melee. In PvP I run Radiant Skin so I would rather gather orbs for a new super as opposed to grenade and melee charge. I don't see that being all that great for PvE given I tend to run a Discipline/Strength build as it is using the Claws/HoPF. That may not be an option anymore unfortunately, but I hope those aren't left behind. If you like them then that's cool. I just don't think they're as useful as many preexisting Warlock exotics.