you are making a lot of assumptions, you can not compare how many abilities you can equip or want to use at 34 to 50. At 50 I dont have enough CP to equip everything that I want.

as for life surge it decreases your targets evasion, so it is useful outside of solo, I use it for the first hit to debuff the target then I switch to speed.

the points that had nothing to do with the move are points that YOU brought up, I simply stated they where moot points, none of my post was an attack, it was merely a response to your statement in which the response was correct.

Again at 26 it is a good skill, at 50 it is inferior to other more needed abilities.