You are missing the point. Weapons generating orbs is used to get charge of light stacks. You do this with the mod "Taking charge". Taking orb generation off weapons makes that mod pretty much useless, unless you are working as a team and feeding off each others orbs from super kills/casts. But i guess everyone can just use "elemental charge" which is a better mod anyway. Well mods are crazy good. Be sure to get them if you dont have them. Weapons generating orbs has very little to do with super energy gain. There are plenty of other ways to get super energy.