No, it's not.
Remember, 3rd jobs are supposed to be pretty OP. After all, half the monsters in this game (in special areas or after level 130) are pretty fricken cheap. Bards also can't survive if they can't KB (if you stop to heal, you're pretty much dead if you're in a mob that you can't KB), so that is there to stop you from easily dying if for some reason you're being attacked by 5+ monsters.
"He who fights and runs away, lives to fight another day!"