Right now when playing with a controller, corpse explosion (CE) explodes the nearest corpses to you and then slowly explodes the ones farther away. If there are mobs really far away you waste a lot of explosions until finally corpses around the living monsters start exploding.
Suggestion - start exploding corpses that are in the general direction the character is facing, starting with the ones that are nearest to you AND in range to living targets.
If there aren’t any next to living targets, do whatever you do now.
Unless I’m missing something, this change would make the spell much smarter and enjoyable (like it is when playing with a mouse).