Its a one sided 8 reducer. I see that as the defender has control over where/how the battle is fought (home turf!). Next time we hang lets cut up the battle board and slide things around. Right now centipedes are considerably tougher. I like the simplicity of centipede = 1+bang.
Here is the old battle board for comparison. It was really the 4 defender spot that changed the most to create a difference between a 2 and a 3 bang centipede!