If you play DRG and find Keen Flurry useless, then you should think about throwing off your spear and never pick one again.
Being able to cut enmity is cool when you're getting hate. But sometimes you'd rather have hate than seeing a monster killing the healer, or simply wants to reduce the damags of some unavoidable AOE, like Twintania's Fireball (yes, you can parry it), Leviathan Tail Swipe when you're hitting the spume, etc.
In fact most of your list is stupid. Obviously there's situational skills, you're not going to spam them all at all time >_>
