I have noticed the same thing. I must be out in left field still. A light battle is the same as a regular grow battle. Why call it a light battle when everyone needs a light to grow. If they were doing away with cob, led, Ext they should have done away with the whole thing. As you mentioned in your post it’s the same battle now just twice. Way to complicating for no reason other than a few people’s problem of having a mixed light. I would have been more than happy to see anyone with a supplemented cob light in the cob battle. Especially when the leds are less efficient than the inefficient cobs they use