Blizzard decided it would be smart to turn ANOTHER class into cooldown stacking facerollers.
Warrior burst is now balanced around two 3 minute, one 5 minute and trinket cooldowns. Outside of that you're not going to touch anything. Our grip is also worse than ever since they removed the pvp 4 piece of heroic leap breaking roots + putting dispels on a cd + making sure bladestorm is not an option. We're in a worst state PvP-wise than we've ever been before.
Think S10 warriors with retarded high Csmash burst, change it to a ~15 second window every 3 minutes or so and you have the new MoP warrior.