I don't mind this change, I know where you are coming from OP. But please hear me out. SE consider this ability to be.. situational and something that to be used in a critical situation. They don't intent BLMs to move around freely with 30sec instant cast. Instead, they want BLMs to be heavy hitters with consequences (movement limitation). I know this because this was mentioned many times by the Japanese devs. But, there is still hope... maybe in the next level cap. I could see them reduce CD specifically for BLMs. But, definitely not by 50%. Take WHM stoneskin as an example. We would probably see CD reduced to 50 sec, name it: enhanced casting+.