I created a Conqueror on Test Live, and I tested the Battlefield Commander AA. The AA reads that while in Frenzy stance, banners and techniques will provide even greater weapon damage. I have tested it, and the damage is no different from when not using a banner or technique. The damage is still higher if I had no feated BfC, but the way it is read, it sounds that when using a banner or technique, you would gain more damage (or hate if you are in defensive) than if you are just standing idle with the regular formation / discipline buff.
Can someone explain this perk in greater detail for me? Because right now, it seems it is just basically a 40% weapon damage buff at all times.