The only time I ever found use for it was the story mode Garuda fight. Even saving as many stones as we can, we had a lalafell SMN that died to Aerial Blast 80% of the time due to HP. Now, you can say it was his fault for not having enough, maybe due to gear/level, but rather than take that route, I'd occasionally pop the tank LB to get us over the hill, so to speak. Still, lacking the DD LB certainly made the fight last longer, for sure.

But any other time? No. Wasted.