In the grand scheme of things it changes very little. That said, its probably my favorite button. The concept of weaving in a charge before your big hit is simply fun and the animation is one of my favorite animations. They could have easily just made Shoha 1 an aoe with potency drop off and removed shoha 2 instead of removing kaiten. I'm not really sure bloat was the reason its being removed and more so has to do with balance and them not knowing what to do with it now that their 3 biggest moves all auto crit.