The new bungie thinks difficulty must only come from dumping more enemies in an area and giving them invincibility frames while they can still one shot you. It makes the GMNF less of a tactical challenge and more of a test of how much BS you're willing to put up with. I mean it's not like there is any intelligent tactical approach to any of it, you match weapons, mash the trigger in the general direction of the enemy, and retreat until they're all dead.