I don't see what the big deal is. It's a very specialized 1 trick pony build that's only good for single, slow hitting mobs (bosses without adds). Meanwhile it gets destroyed by 99% of everything else in the game.
Read again: if you get hit more than once per second, you're dead.
This is working as intended as it prevents you from getting 1 shot by bosses; it lets you get 2 shot.
100% of QQers are selectively forgetting what Inferno is all about: 5 stacks of Nephalem Valor followed by a boss run.
Force Armor is pointless as soon as you face a pack with any of the following: mortar, plagued, molten, meaning you will be useless up until the boss fight, if you even get that far. And if you do so without Force Armor, you're not going to switch at the last minute just to lose all your stacks.
While we're at it, let's complain about vortex Monks spamming Mantra of Healing with shield.
Personally I don't care 1 bit for Force Armor. I used it selectively in NM/Hell and will in Inferno once I get to 1 shot teleport bosses (Rakanoth is my "favorite").
So before you cry about it, show me a video of someone taking on an elite pack with this "awesome" Force Armor build.
Better yet, I have a solution: get rid of Force Armor and give us 30% passive damage reduction, mmk?
PS. My build: http://us.battle.net/d3/en/calculator/wizard#acXSjO!XfU!YaaZYb