How in the world is storm's eye (slashing resist down) wasted? Even if the combo does a bit less dmg than block combo you still need to keep maim (20% dmg) up all the time, even if you have a ninja doing the slashing resist down for you, which is much less efficient than you being in charge of it since the ninja can use higher potency skills. Another thing to note is that when you're not currently holding aggro, spamming block combo too much is detrimental to your other tank's dps, so you should be using storm's eye more often.

If you meant storm's path (-10% dmg) it's a good skill for early progression/farming when you're still not geared enough (when your dps/healers risk getting one shot by aoes). Situational, yes. Wasted, no.

Halone is a low potency skill but still required to do tank swaps or pulls. Even though you want to minimize its usage, it's not wasted, just situational like storm's path.

Dragon kick is monk's blunt resist down debuff which can't be replaced by anything else currently in the game. Even when you have a drk for int down you should still use it for your own dps.